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This glossary has
been composed to help both the
beginner gardener and those who have
been gardening for a while. Enjoy!
Choose the letter of the word you
wish to look up:
-A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-
-P-Q-R-S-T-U-V-W-X-Y-Z-
- A -
ACCENT PLANT
- This could be a focal point plant.
A plant to catch attention. Could
also be called an anchor plant.
ACHEVE
- A one seeded fruit which does not
split open to release it's seed, ie.
the "seeds" on a strawberry.
ACID RAIN
- Rainwater that contains sulfur
dioxide and other pollutants from
industrial plants. There has been
considerable damage done to the
forests of the US and Canada.
ACID SOIL
- Soil that is lower than 7.0 ph
(higher would be alkaline). Acidity
is measured by the amount of calcium
in the soil, as is alkaline soil.
ADVENTITIOUS
- Having growth from places where
normally growth does not occur (i.e.
if a stem is buried and a plant will
grow.)
ADVENTITIOUS
PLANT - A young plant
that develops in an asexual manner
on the leaves or stems of the mother
plant. (Kolanchoe are good examples
of this.)
AERATION
- The loosening of soil by
digging or other mechanical means to
allow air to pass freely, usually
done on lawns.
AERIAL ROOT
- A root which grows out from
the stem above ground level. Aerial
roots are commonly seen on mature
specimens of Monstera deliciosa.
AEROBIC
- Usually used for describing a
characteristic of compost heaps.
Describes organisms living or
occurring only in the presence of
oxygen.
AGGREGATE
CULTURE - The use of
solid material to grow plants. Some
examples are: gravel, rockwool,
sand, all with the additional use of
a nutrient water soluble solution.
AGRICULTURAL
EXTENSION SERVICE - A
county agency that is supported and
monitored by the land grant
university for each individual
state. Great place to seek out the
horticultural agent, receive
publications, and advice. This is
your taxes in action.
AIR LAYERING
- A method of propagating
single-stem plants, such as Ficus
elastica decora, which have lost
their lower leaves and become leggy.
An incision is made to a portion of
outer stem layer, damp sphagnum moss
is wrapped in a bag around it until
roots develop. Then it is cut and
replanted with its shorter stem
size.
ALKALINE
SOIL - Soil that has
a pH level of about 7.0 or more.
Sometimes referred to as "sweet"
soil.
ALL AMERICAN
ROSE SELECTIONS, INC (ARRS)
- This is made up of roses that have
been on trial for two years in
official test gardens throughout the
US. The association is comprised of
rose producers, growers, and people
who introduce new hybrids.
ALL AMERICA
SELECTIONS (AAS) - This
is a group of people in the
horticultural business who test new
cultivars of flowers and vegetables.
All of these gold medal winners can
be raised from seed.
ALLEE
- A very formal design of planting
trees lining both sides of a path or
drive.
ALLELOPATHY
- The release of chemicals by
certain plants that will prevent the
growing of other plants nearby.
Walnut trees are very well known to
do this.
ALPINE
- Plants from high mountain regions.
Anything that is from above the tree
line. They are able to overwinter
beneath deep snow protected from
extreme low temperature by their
moisture.
ALPINE HOUSE
- A special greenhouse created to
meet the requirements of alpines. It
is usually kept cool in the summer
by shading the glass. In the winter
it is unheated unless it needs to
provide protection from very severe
cold.
AMENDMENT
- Usually referring to some form of
organic material being added to the
soil for the purpose of improvement.
AMPHIBIOUS
- The ability of plants to brow both
in aquatic and in the exposed soil.
Usually in a moist or boggy
condition, when the winter recedes
in the area.
ANAEROBIC
- Describes organisms living or
occurring when oxygen is absent.
Usually term used when talking about
compost heaps.
ANNUAL
- A plant that will complete its
life cycle in one growing season.
APHIDS
- Small sap sucking insects. They
infect foliage and are easily
recognized by the sugary "honey dew"
that they secrete that often
attracts ants. Can be controlled by
application of soapy solution. (see
Sooty Mold)
AQUATIC
- Plant which grows partially or
completely in water.
ARBOR
- A free standing structure used in
the garden to support vines or
climbing plants of all sorts for
shade, a walkway, or just a focal
point. This term is sometimes used
interchangeably with pergola.
ARBORIST
- A specialist who cares and
maintains trees. Everything from
planting, to pruning and also
diagnosing and treating diseases.
ARBORETUM
- This is a garden with a large
collection of trees and shrubs. They
are specifically grown for
scientific or educational purpose.
ASEXUAL
- This is a means of propagation
that does not include seed
production. Therefore propagating by
cuttage, dividing and layering.
ATRIUM
- A structure that provides lots of
above light for plants. Commercial
buildings often have their foyer as
an atrium. Many homes have built in
atriums.
AUXIN
- A hormone that controls plant
growth.
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- B -
B AND B
- Balled and burlap, a method in
which plants are sold where the
roots of a plant have been lifted
and wrapped in burlap (sometimes
plastic covered material) to keep it
together until transplanted. Large
trees are often sold this way.
BT
- Bacillus thuringiensis. A
bacterium which will destroy the
stomach cells of insects that
consume it. It degrades quickly in
sunlight so spray early in the
evening. This biological
insecticides will also kill young
butterfly caterpillars.
BACKBULB
- refers to the propagation of an
orchid. It is the old, dormant
pseudobulb, it may be leafless, but
will still produce a new plant.
BACKFILL
- Replacing dirt from the original
hole after planting.
BACKYARD
WILDLIFE HABITAT - A
dreamy situation where native plant
materials are providing food and
shelter for protection and
reproduction for birds, insects, and
mammals in ones own backyard.
BALE
- The area of the trunk between the
base of a tree and the lowest
branch.
BARE ROOT
- Plants that have been dug out of
the ground when dormant. The soil is
shaken free, washed and stored until
shipment. Roses and daylilies
commonly come this way, as well as
smaller shrubs and bushes, sold in
their dormancy.
BEDDING
PLANT - Usually an annual
plant temporarily in a garden
display. Some interstates have
"smiley faces" that are done in a
bedding plant display. Sometimes
called carpet bedding.
BELL JAR
- An old term and glass container
which is bell shaped. On the top is
a knob for the use of protection of
a delicate plant. From the Victorian
Era and now days known as a cloche.
BENEFICIAL
INSECT - These are
insects that will improve and work
in our gardens. By improving the
soil, going after harmful insects,
and will pollinate plants.
Ladybeetles, earthworms, and bees
are well known.
BERM
- A landscaping technique that is
used to create interest, privacy, or
screening. It may also divert water
runoff. It is made by creating a
mound of earth or a hill.
BICOLOUR
- A flower with petals which bear
two distinctly different colors.
BIENNIAL
- A plant that will require two
growing seasons to complete its life
cycle. In the first year leaves. In
the second year has blooms and seeds
(i.e. foxglove, hollyhock, rose
campion.)
BIGENERIC
- A hybrid that is created by
crossing two different genera.
BINOMIAL
NOMENCLATURE - The
current scientific method of naming
species of plants and animals.
BIOLOGICAL
PEST CONTROL - Using
living organisms such as beneficial
insects or parasites to destroy
garden pests (i.e.. BT - beneficial
nematodes.)
BLACK SPOT
- A disease on the foliage of roses.
It is caused by moisture. To avoid,
plant disease - resistant roses.
Clean up after pruning. One can use
fungicide during damp weather -
captan, copper, or lime sulfur are
most effective when you follow the
instructions carefully. One can also
use baking soda (sodium bicarbonate)
at a rate of one teaspoon to one
gallon. Use in the morning to
prevent sun scald. One can also try
neem oil.
BLANCH
- To keep light from the leaves and
stems, keeping the pant tissue soft
(i.e. endive is grown this way).
BLOOM
- A natural mealy or waxy coating
covering the leaves of some house
plants.
BLOSSOM END
ROT - A cultural
deficiency created by a lack of
calcium. Very closely related to
extreme temperatures, uneven
watering, and root damage. Most
commonly seen in peppers and
tomatoes.
BOG PLANT
- Plants that preferred damp and
most sail as their habitat (i.e.
pitcher plant, Venus fly trap.)
BOLE
- The area of a tree trunk that is
from the ground to the first major
branch.
BOLT
- Annual vegetables or flowers that
grow quickly to flowering stage, at
the expense of their best overall
development, and go to seed (i.e.
dill in hot weather).
BONEMEAL
- A fertilizer made from crushed
animal bones. It is a natural high
phosphorus fertilizer, very slow
releasing and good for root
development.
BONES-OF-THE-GARDEN - In
the language of garden design this
is the permanent structural elements
that give the shape to gardens:
paths, walls, steps, fences,
trellises, seats, water gardens, and
hedges.
BONSAI
- The art of miniaturizing trees by
careful root and stem pruning and
root restriction.
BOTANICAL
NAME - The Latin
scientific name of a plant is its
botanical name. There is only one
botanical name per plant so if you
want a specific variety, use it's
botanical name to be sure you are
getting what you want. Common names
tend to be confusing.
BOTTLE
GARDEN - A small
terrarium created in a bottle. A
miniature eco-system.
BOTTOM HEAT
- An arrangement used in
propagation. Usually electric
heating cables will run through the
base of the propagation medium.
Great for seed germination and
cuttings.
BRACT
- A modified leaf, sometimes colored
and sometimes mistaken for a petal.
Examples of house plants with showy
bracts are Poinsettia, Aphelandra,
and Bougainvillea.
BROADCAST
- A method by which seeds or
fertilizer are scattering randomly
to cover an area.
BROWN ROT
- A fungus that is very common
disease on fruit. Buy disease
resistant varieties. Remove all
infected parts of the plant.
BUD
- The embryonic shoot on a stem,
branch, or tuber. It is the
beginning of a bloom.
BULB
- A storage organ, usually formed
below ground level, used for
propagation. A true bulb consists of
fleshy scales surrounding the
central bud. We often think of
spring and fall bulbs.
BULBIL
- An immature small bulb formed on
the stem of a plant: e.g. Lily.
BUSH
- A many branched small shrub with
no distinct main stems.
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-C-
CALCITIC
LIMESTONE - A common
material used for "liming" soil that
has an acid level that is too high.
this type is most commonly used and
contains calcium carbonate.
CALLUS
- Scar tissue that forms when a
plant has been damaged or cut. When
propagating some succulents it is
best to have the leaf form a callus,
to prevent disease and rotting.
CAMBIUM
- This is the thin membrane that
grows just under the bark of a
plant.
CANE
- A slender, straight, not very
woody branch or stem of a plant
(i.e. bamboo, rose, raspberry and
blackberry bushes.)
CANKER
- An area on soft or rotten woody
stems or twigs that is caused by
bacteria and fungi.
CANOPY
- The crowns of trees forming the
top layer in the woods or forest.
Considered the high shade of
gardens.
CAPSULE
- A dry seed pod that will split
wide open when mature..
CATKIN
- Usually petal-less flowers
arranged in a spike.
CELL PACK
- A group of gardeners traveling
together in a confined space for
snipping and stealing plant material
in a botanical garden.
CHLOROPHYLL
- The green pigment in leaves. It
will be dominant in the plant when
present or healthy.
CLAY AGGERATE
- A product that is
manufactured exclusively in high
tech kilns in Germany and used as a
soil replacement on hydroponics. It
once was very popular in the late
'70's - '80's. Now making a
comeback.
CLIMBERS
- Those gardeners who are willing to
hike for distances to see an alpine
specimen.
CLOCHE
- This is a cover for protecting
plants from the cold. In the early
19th century it was more popular,
being bell shaped. Now, more
conventional models are in all the
catalogs.
CLONE
- A genetically identical group of
plants, created from one individual
by vegetative propagation.
CLUB ROOT
- A disease of cabbages and some
related vegetables caused by the
slime mold fungus.
COLD COMPOST
- A method by which organic material
just rots on its own. It may take
months or years to naturally
decompose. There may be a
significant amount of weed seeds.
And, there may be the danger of some
disease organisms still in the
compost.
COLE CROPS -
These are members of the cabbage
family (ie. broccoli, cabbage,
cauliflower, kale, collards,
kohlorabi)
COMMON NAME
- The name by which plants are known
by non-botanists. Plants that have a
short history of cultivation may not
have a common name. these names vary
from country to country, even from
region to region.
COMPACTION
- Often this term comes up when one
is talking about new landscaping
around a new construction whether it
be a private home site, or
commercial site. Compaction is
created by heavy machinery squeezing
the layers of the soil together. It
is destructive to the composition
and structure of the soil. No longer
are there healthy air pockets for
roots. The soil is no longer of good
texture for planting. Often
nutrients are washed away due to
poor drainage, or no drainage at
all.
COMPANION
PLANTING - Different
plants that are planted together for
the benefit of each other. Whether
it be color or roots deeper to bring
up the nutrients for the secondary
plant. Ground covers are great
companion plants.
COMPLETE
FERTILIZER - A
fertilizer that can provide all the
three main elements: nitrogen,
phosphorus, and potassium.
COMPOST
- Usual meaning for the house plant
grower is a potting or seed/cutting
mixture made from peat ("soil less
compost") or sterilized soil ("loam
compost") plus other materials such
as sand, lime, and fertilizer.
Compost is also a term for
decomposed organic matter such as
what is left after a compost heap
has degraded vegetable and animal
matter. An excellent source of
organic material for rebuilding and
enriching soil.
CONIFER
- An evergreen, generally green,
sometimes cone shaped. Generally in
a northern region.
CONSERVATORY - A building
build partially or entirely of glass
attached to the house and where a
large number of plants are grown.
Not to be confused with a
greenhouse.
CORDON
- A very interesting way to grow
fruit trees. Apples and pears do
well in this mode. The tree is
repeatedly pruned and trained to
grow as a single rope like stem. For
lack of space, this is ideal.
CORM
- This is a swollen, underground
stem base used for propagation: e.g.
Crocus.
COTYLEDON
- The first set of leaves to grow
after a seed has germinated.
COVER CROP
- A crop that is planted to add
humus to the soil or to control
weeds (i.e.. winter rye). Usually
done between normal planting
seasons.
CREEPER
- any plant that will make long
shoots and grow along the ground
such as creeping fig, ivy, or
Virginia creeper.
CROCKING
- Any material used in the bottom of
containers to provide drainage (i.e.
shells, rocks, broken pottery,
Styrofoam.)
CROSS
- Another name for
hybrid, but used in much more
common terms.
CROSS POLLINATION
- The transfer of
pollen from the flower of one
plant to the flower on a different
plant. Many species require this to
set seed. As opposed to
self-pollination.
CROWN
- The region where shoot and root
join, usually at or very near the
ground level.
CRUCIFER
- Any plant in the crucifer of
mustard family. Those flowers with
four petals are arranged like a
cross.
CULINARY HERB
- A plant grown for its strong
flavor which is used to cook with in
dishes and salads. the parts of the
plant used are the leaves, flowers,
or bulbs.
CULTIVATE
- Breaking the topsoil so water and
air can penetrate, and, to prevent
weeds.
CULTIVATION
- The technique of weeding and
hoeing for the purpose of increasing
the air in the to layers of the soil
and to break up the soil so water
will penetrate.
CULTIVAR
- Used when determining plant names.
Indicates the variety originated in
cultivation and not the wild. This
portion of a plants name is usually
not Latin.
CULUN
- In the bamboo world this refers to
the stem of grasses being usually
hollow.
CUT BACK
- Trimming or cutting moderately,
making sure some of the last
season's growth is left, to clean
the plant up and the encourage new
growth.
CUTTING
- This can be a leaf, roots, shoot,
or a bud that has been cut off and
then used in propagation.
CYCAD
- An ancient group of plants that
were very abundant in the "age of
dinosaurs" (the Jurasic and
Cretaceous periods). There are less
than 200 species that survive today
and are growing in the warmer
regions of the world. Often thought
of as long-lived flowerless plants.
Most are palm or fern-like.
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-D-
DAMPING OFF
- This is a decayed young seedling
at ground level, caused by a fungal
attack. The result of soil borne
diseases and over watering.
DAPPLED SHADE
- High shade that is created by
allowing sun to shine through.
DARK-DEPENDENT SEEDS -
Seeds that germinate only in
darkness. So, must be covered with
soil.
DAY LENGTH
- This merely is the number of hours
from sunrise to sunset. Sometimes
used interchangeably with photo
period.
DAY NEUTRAL
- A plant whose blooming period is
not affected by the length of day.
DEADHEADING
- Pinch here, snip there, removing
spent flowers that have already
bloomed. This is done for the
benefit of the plant to prevent
disease, prevent seed development
and will encourage more vigorous
blooming and a bushier plant.
DECIDUOUS
- These are plants that loose their
leaves at the end of the growing
season. Maple trees are a good
example.
DETHATCH
- The process of taking up dead
grass and plant material that builds
up under the grass making the soil
easier to absorb nutrients.
DIBBLE
- A tool used to make holes for
seeds or bulbs: a pencil end, dowel,
or anything that works for the
situation.
DIEBACK
- A process caused by disease or
pests. It is the death of the tips
of branches and shoots. It will
progress until the whole plant dies.
DIOCECIOUS
- A plant which bears either male of
female flowers. (Compare to
Monoecious)
DIRECT SEEDING
- putting the seed directly in the
soil as opposed to transplanting
seedlings.
DISBUDDING
- In reference to fruit crops, by
selectively taking off buds to
diminish the crop production and to
have quality over quantity.
DISH GARDEN
- This arrangement is most seen in
florists. Many plants grown together
to be used indoors for a focal point
of greenery. (see
European Dish Garden article)
DISTILLED
WATER - Pure water free
from dissolved salts. Formerly made
by distillation, now produced
chemically by demineralization.
DITHER
- Just a plain old utensil of any
kind to make a hole in the ground to
drop a seed into.
DIVISION
- A method of propagating plants by
separating each one into two or more
sections and then repotting (i.e.
perennials are easily propagated
this way.)
DORMANT
PERIOD (DORMANCY) - This
is the time when a plant has
naturally stopped growing and the
leaves have fallen or the top growth
has died down. The dormant period is
usually, but not always, in winter.
Most plants need it to perform.
DORMANT OIL
- A great horticultural oil to be
used on fruit trees or any plant
material that has insects. It mainly
kills the eggs that are not seen.
Read the directions carefully not to
be used in high temperatures. There
are several brands on the market.
DOUBLE
DIGGING - A method of
deep cultivation.
DOUBLE
FLOWER - A flower that is
full from overlapping petals.
DOUBLE
POTTING - Placing a
potted plant in a larger pot with
damp peat moss surrounding it. The
peat is kept moist and provides a
humid evaporative effect for the
potted plant nestled between it.
Used a lot to dress up a working
clay pot.
DOWNY
MILDEW - A certain kind
of mildew
caused by a special fungi. Often
confused with sooty mildew and
powdery mildew. As with all mildews
it is a problem in hot and humid
weather. And, like many fungi it
transports its spores. The plants
affected will have fuzzy patches on
the leaves.
DRAINAGE
- How water moves through the soil.
A real important factor for most
plants and gardens. In general
water should move through the soil
whether in a garden or in a
container somewhat easily. If there
is standing water create better
drainage by adding non-porous
material.
DRAWN
- Referring to the structure of a
plant, one that is too tall and has
grown too weak. Caused by growing in
too little light or too close
together. Often is the case in flats
in nurseries. Buyer beware.
DRIFT
- A design term generally attributed
to
Gertrude Jekyll. To express a
feeling in with plants. The
technique is to plant flowers
thicker in the center and further
apart on the outskirts.
DRIP
IRRIGATION - A trickle
irrigation system. Highly
recommended for soaking the soil
well.
DRIP LINE
- The imaginary line under the tips
of the canopy of a tree.
DRUPE
- A type of fruit (i.e. plums,
cherries, olives, peaches). Also
considered stone fruits. The fruit
wall is fleshy. The outside layer is
generally juicy. The one seed fruit
will not open up.
DWARF
- Shorter than its normal growth.
Each family of plants has a height
recommendation for dwarfness.
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-E-
EDGING
PLANT - On the edge or
border of a bed.
EFFLORESCENCE - The
deposit of calcium and fertilizer
salts on the outer surfaces of clay
pots.
ENDEMIC
- Plants which are of a certain
geographic area and generally are
confined to that place.
EPIPHYTE
- This is a plant which grows above
ground attaching itself to trees or
rocks. A good example is the Amazon
Air Plant or Spanish Moss.
EROSION
- The wearing away of soil created
by man, rain, or wind. Not a healthy
situation.
ESCAPE
- A plant that is on its way to
becoming naturalized in an area.
Just exactly as it reads, it has
escaped from cultivation.
ESPALIER
- The method of training a tree or
shrub as to grow in a pattern. Often
pear trees, apple trees, or
ornamentals.
EVAPOTRANSPIRATION -
Known as ET, it is the amount of
water that transpires through a
plants leaves combined with the
amount that evaporates from the soil
in which it is growing.
EVERBLOOMING - Those
flowers that will bloom all season.
EVERGREEN
- A plant that will bear foliage
throughout the year.
EVERLASTING
- Flowers that have been grown for
drying and preserving.
EXOTIC
- Plants that are native to other
parts of the world and have been
introduced here. Watch out.
honeysuckle and purple loosestrife
are invasive exotic pests.
EYE
- Two unrelated meanings: an
undeveloped growth bud (as in a
potato) or the center of a flower
(as in a daylily).
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-F-
F1 -
Breeders use this term and it
refers to the first generation
offspring, from two plants that have
been bred. The F1 may have desired
qualities of either or both parents.
F2
- This is the product of two F1
plants that have been crossed. This
is considered the second generation.
This will not necessarily produce a
great plant.
FAIRY RING
- A circle of fungal growth.
FASCIATION
- This effects many herbaceous and
woody plants. This is a genetic
mutation or imbalance in growth
caused by absorption of a herbicide.
Remove all effected stems.
FAMILY
- One genus or several genera which
have a basically similar floral
pattern make up a family (i.e.
LILLACEAE (lily), IRIDACEAE (iris),
ROSACEAE (rose), ORCHIDACEAE
(orchid))
FERTILIZE(RS) - The act
of or the actual substance added to
soil to provide additional nutrients
for plants. May also be used to
describe the pollination process
flowers undergo with the help of
bees and other insects. There are
organic and chemical fertilizers.
FIELD GROWN
- Grown in the field, as
opposed to root cuttings which are
grown in pots in greenhouses.
FLAT
- A shallow wooden box or plastic
tray used to start cuttings or
seedlings. Annuals may be purchased
in a flat.
FLORE PLENO
- A botanical term describing a
flower with extra petals.
FOILIAR
FERTILIZER - A liquid,
water soluble, fertilizer applied to
a plant's foliage in a fine spray so
that the plant can absorb the
nutrients through its leaves.
FORCING
- The process of making a plant grow
or flower before its natural season.
Usually done indoors (i.e.
paperwhites).
FOUNDATION
PLANTING - Any plant that
is used around a building for the
sole purpose of making it look more
esthetic. In earlier days it was to
cover the foundation.
FROND
- A leaf of a fern or palm. The
limbs of a palm tree.
FROST
- The freezing and condensation of
moisture in the air. Frost dates are
important to know for your zone or
area.
FROST HARDY
- Plants that are able to survive
winter frosts without damage to
their leaves (i.e. evergreens) or
damage to dormant stems, buts or
roots (i.e. deciduous plants). Very
much relative to geographic areas.
FROST TENDER
- These plants will be damaged or
killed by even the lightest of
winter frosts. Most evident would be
tropical plants stretched to a
cooler zone.
FRUIT FLY
- A small insect pest that will lay
its eggs beneath the surface of
developing fruits. The larvae will
then grow quickly and exit through
holes in the fruit or vegetable
causing rot.
FULL SHADE
- This shade is sometimes called
deep shade and is created by mature
trees.
FULL SUN
- Six hours or more in the direct
sun during the growing season of the
year.
FUNGICIDE
- A chemical used to control
diseases caused by fungi.
FUNGUS
- A primitive form of plant life. It
is not vascular, and non-photo
synthetic organism - powdery mildew,
sooty mold, mushrooms.
FURROW
- A depression in the planting
garden either dug by a spade or a
plow. It is created to be planted in
or to be drainage.
FUSARIUM
- This fungal disease is soil borne
and causes wilting and death mostly
in herbaceous plants. Often
represent is the "V" in V,F,N in
plant tags that denote fusarium
resistant.
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-G-
GALL -
An unusual and abnormal growth on a
plant. Caused by insects, but can
also be caused by bacteria and
fungi. No harm to the plant material
other than it is unsightly.
GARDEN
DESIGNER - (Aren't we
all?) A person who professionaly
will create plans for a home or
public space. Many are self-taught,
and not generally licensed by the
state. Not to be confused with
garden architects who are
specifically trained and licensed.
Garden designers sometimes are
referred to as landscape designers.
GENUS
- Used when naming plants. Genus is
the plant equivalent of our
surnames. When followed by the name
of the "species" you have it's
botanical name. Almost always in
Latin.
GEOTROPISM
- Not a commonly used term but it is
the response to gravity. Plant parts
that grow downward, such as the
roots, would be positive geotropism.
A negative geotropism would be the
stems growing upward.
GERMINATE
- The sprouting of a seed.
GIBBERELLIN
- A hormone used in plant
production. Often used in Camellia
blooms and in increasing the size of
fruits.
GIRDLING
- The choking of a branch by a wire,
rope, or other inflexible material
which usually occurs most often in
woody stemmed plants that have been
tied down too tightly without regard
for growth.
GLADE
- An open space in a woodland area.
GLASSHOUSE
- our friends the British use this
in reference to a greenhouse.
GLEN
- A very romantic term meaning a
narrow valley.
GLOCHIDS
- Tiny, still hairs with barbs found
in cacti. Don't let them get you.
GRADE
- Not your A, B, C's in class, but
the degree or direction of a slope,
generally. Real important with house
construction and ground placement.
GRAFTING
- This is a method of propagation.
The process of joining a desirable
stem or bud of one plant (known as
the scion) on to the less desirable,
but hardier, stem of another (known
as the stock). This will give a
stronger root system than the scion
would have normally had. Commonly
done in roses, fruit trees and in
some ornamentals.
GRANULAR
FERTILIZER - A fertilizer
that is dry and is a tiny pellet
form. It is spreadable and should be
measured. A granular fertilizer can
come in both a natural and synthetic
form.
GREENHOUSE
- A house that is green. One would
think, but this is a structure that
can be build out of glass, plastic,
or fiberglass. This building will be
controlled in its temperature and
humidity. Greenhouses are used for
public display, cultivation, and in
general protection of plants.
Greenhouse comes in hobby sizes and
as commercial usage.
GREEN
MANURE - A crop (such as
rye grass) that is grown and then
incorporated into the soil to
increase soil fertility or organic
matter content. Usually turned over
into the soil a few weeks before new
planting begins.
GREENSAND
- A sediment composed of grains of
glauconite mingled with clay or sand
used as an organic fertilizer. It
contains about twenty-two trace
minerals including potash, silica,
iron oxide, magnesia, lime, and
phosphoric acid. Mined in Florida,
once the ocean floor. Roses and
tomatoes love it. The material will
prolong fruiting and loosen heavy
clay soils.
GROUND
COVER - A plant used to
provide a low-growing carpet between
other plants.
GROWING
HABIT - A direction or
shape a plant takes as it grows.
GROWING POINT
- The area where the new growth
occurs. When a plant is pinched and
the new shoots then develop, this is
the growing point.
GROWING SEASON
- The period of time from the last
frost date in spring to the first
frost date in the fall. Vegetables
especially will require a certain
amount of days to maturity. Make
sure your growing season in long
enough.
GROWTH
REGULATOR - A commercial
chemical used by nurseries to change
the shape of a plant. In general to
dwarf a plant or to make the stems
shorter. Kalanchoe are often dwarfed
and then forced to bloom. The plant
eventually will grow out of this,
especially if cuttings are taken.
GYPSUM
- A mineral of calcium sulfate.
Gypsum adds calcium to the soil. It
also will improve the structure of a
clay soil. There will be no change
in the pH value of the soil.
GYPSY MOTH
- A caterpillar about 1 1/2 inches
long that came from Europe. these
larvae do great damage by chewing
and sometimes defoliating the entire
tree.
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-H-
HABIT -
The shape or form of a plant,
growing vertical, laterally, or
rounded. It is important to know the
habit of a plant so one can expect
certain growth patterns.
HABITAT
- The environment in which a plant
is usually found growing, the
factors being climate and soil.
Microclimates will also play
into this.
HAHA
- No, we are not starting a comedy
club, but in the 18th and 19th
century the dry moat or ditch around
the English Manor house was created
to keep animals from roaming too
close.
HALF-HARDY
- Just as the word depicts, not
completely hardy. Good examples re
pansies, snapdragons, sweet alyssum.
They will tolerate some light frost
and cold nights.
HALOPHYTE
- Those plants that will tolerate
salt in the soil. Mostly coastal
plants in the dunes, or marshes.
HARDENING
OFF - Gradual
acclimatization to colder
conditions. Usually used when taking
seedlings out of the greenhouse or
moving outside to a cold frame or
protected area.
HARDINESS
- When a plant has the ability to
withstand low temperatures or frost.
HARDINESS
ZONES - This was created
by the US Department of Agriculture.
The zones are divided into 11 zones.
Based on the average minimum
temperature in the winter. It is
important to note that this has all
been revised and good to recheck.
Easily found in many books and
catalogs. If a plant is recommended
for zone four it will grow in tht
zone and those higher.
HARDPAN
- Compacted soil, sometimes new,
created by construction. Water will
run off and plant roots can not
penetrate the layer. Can be broken
up.
HARDSCAPE
- Includes any garden feature that
is not a plant. Like birdbaths,
deck, fences, trellises, benches,
and patios.
HAY
- Stems of grass. Most popular feed
for horses and cattle, however
gardeners are always looking for
"spoiled hay" or "mulch hay". This
is hay that has rotted or gotten
moldy. It is great for compost piles
and using as a mulch. Beware of weed
seeds and compost well.
HEADING BACK
- The process of cutting an older
branch or stem to a twig or stub.
HEART ROT
- most commonly heard of in
reference to trees. The center
merely has rotted out. Can also
happen in root vegetables.
HEAVING
- When there is a climate change
from frost to warming of the soil,
it often causes the soil to buckle
upward. Sometimes called frost
heaves.
HEDGE
- Suitable trees, shrubs, or bushes
planted relatively close together so
that the branches will intertwine to
provide a barrier fence for a
windbreaker or privacy. Hedges can
be any height or width depending on
the plant material used. Generally
they are long lived species.
HEDGE ROW
- Just as it reads - a row of plant
material (shrubs and trees) that are
suitable for hedges.
HEEL
CUTTING - A short, side
branch taken as a cutting with a
small piece of the main stem. (Often
taken with old rose cuttings.)
HEELING-IN
- This is a temporary planting
procedure until a plant can be put
in its permanent place. The plant
will benefit from the soil
temperature.
HEIRLOOM PLANT
- Plants that have been around for
50 years or more. Not all people
will consider the same plant an
heirloom.
HERB
- A plant grown for its medicinal or
flavoring qualities, or its scented
foliage.
HERBACEOUS
BORDER - Probably more
known in ferns with Gertrude Jekyll
as she created great colorful
perennial boarders in contrast to
previous Victorian annuals in their
showy and symmetrical beds. Of great
interest and diversity.
HERBARIUM
- A collection of dried specimens
and a research center. It is a
special kind of museum.
HERBACEOUS
- A plant with a non-woody stem. The
upper parts will die back at the end
of the growing season. It generally
refers to perennials. Gertrude
Jekyll invented the term.
HERBICIDE
- As much as I hate the use of this
word and anything connected to it,
it is any chemical that will kill a
plant. There are both selective and
non-selective herbicides. Selectives
only killing a specific plant and
the non-selective killing a larger
segment of plants.
HIGH SHADE
- Always a difficult gauge but
generally it is the shade beneath
trees that have been "limbed up" or
pruned to get some light in.
HILL UP
- It sounds like an old fashion term
but means to pull the soil around
the stem of a plant for support.
HONEY DEW
- The sweet and sticky syrup
secreted by aphids and other
sap-sucking insects. It then
sometimes gets moldy fungus on it.
Should be washed off with a soapy
water rinse.
HORTICULTURE
- The art and science of gardening.
Commercial horticulture would
include fruit, flower and small
scale vegetable growing including
the nursery industry. Agriculture
covers broad acre farming of plants.
HORTICULTURAL
OIL - This includes both
a dormant oil and a summer oil -
used to smother eggs and developing
insects on trees and ornamentals.
The heavier oils are used in the
late winter or very early spring,
making sure the temperatures are
over 40°F but before the plant leafs
out. The lighter summer oil can be
used anytime the temperature is
below 85°F.
HORTUS
- This plant dictionary was
originally created by Liberty Hyde
Bailey in 1930. Plants that were and
are cultivated in the U.S. and
Canada. It has been rewritten by the
staff of the L.H. Bailey Hororium at
Cornell University. It is definably
a reference book to have on your
shelf.
HOST
- Any plant material that will
support a parasite. Oak trees will
host mistletoe that will create
damage and oaks can also host
Spanish moss that does no harm.
HOT CAP
- Cones that are used a lot in
cooler zones to protect newly
planted seedlings from cold weather
and birds. Usually made of plastic
or a very heavy translucent waxed
paper.
HOT HOUSE
- Another term for a greenhouse
sometimes found in earlier garden
writings.
HOUSE
PLANTS - Plants that are
grown in containers inside the home.
HUMUS
- This is the organic residue of
decayed vegetable in the soil (i.e.
leaf mold or compost.)
HYBRID
- The offspring of two different
varieties or species. The pollen of
one variety pollinates the variety
of another. A new plant is created.
HYPERTURFA -
Lately this has become
very popular. A replica lightweight
rock material created by equal
amounts of dry cement, sand,
perlite, peat moss, and water. This
is made into troughs, planters, and
rock all in the manner of looking
old.
HYDROPONICS
- A method of growing a plant in
water containing dilute nutrients.
Many vegetables are commercially
grown this way. Epcot center has a
wonderful hydroponics center.
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-I-
IKEBANA -
The formal flower
arranging done by the Japanese.
Special attention and thought to
balance, harmony, and form.
INDETERMINATE
- Being able to grow for an
indefinite period of time (i.e. many
tomatoes.)
INDIGENOUS
- Plant species that are native to
that region. These plants are
believed to be growing in the wild
at least for the span of human
history.
INFERTILE
- Soil that has no nutrients.
INFLORESCENCE - The
arrangement of flowers on the stem.
Basically, a flower head.
INORGANIC
- A chemical or fertilizer which is
not obtained from a source which is
or has been alive.
INSECTICIDE
- A synthetic or organic chemical
used to kill or repel insects.
Please use as directed on the label.
INSECTICIDAL
SOAP - A great
alternative to using chemicals on
plants. It may not be the total
answer to getting rid of insects but
certainly should be tried first. A
homemade version is two tbsp. to a
gallon of water. Several application
may have to be used.
INSECTIVOROUS
PLANT - Another term for
carnivorous plants. Plants that will
trap and digest insects that will
supply them with nitrogen. Most of
these plants grow in swamps where it
is difficult to obtain nitrogen.
INSITU
- The act of sowing seeds or
cuttings in the ground where they
are to grow.
INTERCROPPING or INTERPLANTING
- A smart way to garen. Mixing two
or more plants, tall and short, for
foliage difference, or combining
plants that bloom at different times
of the year. It keeps the interest
in the garden.
INVASIVE
- The ability of a plant to spread
quickly and will crowd out other
plantings Great for a ground cover
but dangerous for a well kept, under
control garden bed.
IRON
CHELATE - This is often
recommended when plants are showing
signs of chlorosis. It is a form of
iron, being readily absorbed by
plants, especially in alkaline
soils.
IPM
- Integrated Pest
Management. A method by which
gardeners can learn to manage and
eradicate pests by choosing
appropriate plants providing good
growing conditions and minimizing
pests rather than annihilating them.
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-J-
JAPANESE
BEETLE - If there is one
bug a gardener should know it is the
Japanese beetle. Its larvae in the
soil is known as the white grub that
will eat the roots of your grassy
lawn. When the beetle appears it
eats its way through plants
especially roses and leaves them
like skeleton forms.
JAPANESE
GARDENS - Gardens that
are designed with a Japanese
cultural influence. Using particular
plants for the design. Often with a
Zen influences. Bamboo, pine, mondo
grasses, koi are often used.
-K-
KERNEL
- The edible part of nut.
KNOT GARDEN
- A very carefully
planned garden of small dwarf shrubs
or even herbs. Planned in a pattern
and kept in order by constant
pruning and trimming.
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-L-
LACEWING -
Think beneficial.
About one inch in length will eat
mites, aphids, and thrip.
LANDSCAPE
ARCHITECT - A very good
professional to consider when
creating a garden. They are licensed
by the state and know the mechanics
of major construction, grading,
drainage, and will advice solutions
to problems.
LANDSCAPE
FABRIC - Probably one of
your best solutions against weeds
for beds. This can be a variety of
materials: newspaper, plastic,
porous fibers, burlap. It provides a
barrier for weeds to germinate. This
is then dressed with mulch of any
kind.
LATH -
A structure used to create shade.
Made of any material, evenly spaced
to let in some light.
LAYERING
- A way to propagate plant material.
A branch is anchored to the ground
(still attached to the parent
plant). Roots appear creating
another plant.
LEACHING
- A process which can rid soils of
bad substances, like salts.
LEADER
- The main growing shoot of a
sapling, it eventually will become
the trunk of the tree.
LEAF CUTTING
- A method of
propagation. A leaf is removed and
is placed in vermiculite or perlite
for future baby plants.
LEAF
MOLD
- Partially decayed leaves
used in some potting mixtures. It
must be sieved and sterilized before
use. Great for outdoor use in beds.
LEAFLET
- A leaf-like section of a compound
leaf. Small in stature.
LEAF ROLLER
- Different moths that will roll
leaves when larvae. Cannas often get
a lot of leaf rollers.
LEGGY
- This is tall and spindly growth,
not usual to the growth habit of the
plant. It is seen because of the
lack of light.
LEGUME
- A plant whose roots form an
association with soil borne bacteria
that can capture atmospheric
nitrogen. A good example of this are
soybeans.
LICHEN
- A combined growing condition of
algae and fungus. It looks crusty,
and comes in many colors: gray,
green, bluish, or browns.
LIMBING UP
- Pruning off the lower limbs of
trees, usually for ease of walking
underneath or admitting sunlight.
LITHOPHYTE
- Plants that grow on rocks or other
areas that do not need soil. They
will receive their nourishment from
the air. i.e. orchids and lichens.
LOAM
- Good quality soil. Adequate
supplies of clay, sand, and fiber
must be present. Crumbly to the
touch. Ideal for most gardening.
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-M-
MANURE -
Any animal droppings with
a high content of nitrogen, these
should be composted and aged before
use. Take special note not to use
cat or dog droppings. All to often
these contain disease organisms.
MANURE TEA
- A liquid fertilizer made by mixing
manures with water and filtering
out. Pillow cases filled with cow or
horse patooties and dunked in a pail
of water.
MARGINAL
PLANT - Plants that will
grow on the edges of ponds or lakes
and when cultivated will make nice
plants around a water garden (i.e.
iris).
MASS PLANTING
- The planting of one particular
flower or many of the same kind
somewhat close together to create a
dramatic "look".
MASTER
GARDENER - County
residents who volunteer and are
trained to work with the extension
service. (see
article).
MICROCLIMATE
- A physical area with a set of
conditions different from those
surrounding the area.
MICRONUTRIENTS
- These are the very important
nutrients that plants need for
proper growth. Carbon, hydrogen,
oxygen, and from the soil they will
acquire nitrogen, potassium, and
phosphorus and in smaller quantities
calcium, sulfur, and magnesium.
MICROORGANISMS - Animals
and plants that are too small to be
seen clearly with the naked eye but
are the soil enablers helping to
improve the dirt.
MICRO
PROPAGATION - Also called
propagating by tissue culture.
Taking cell slices of plant material
and starting growth on culture
dishes.
MILDEW
- Several different types of fungi.
Two popular types are downy and
powdery. It leaves a white coating
on the leaves. Common to crepe
myrtle, zinnias, grapes, and roses -
even bee balms. It shows up in cool,
wet weather. Drip irrigation can
prevent some occurrence. Plant
disease resistant varieties.
MIST
PROPAGATION - The ideal
method of propagation in a green
house or place with good
circulation, using automatic
misters.
MIXED BORDER
- Some of this, some of that in a
border. Shrubs
and woody plants that are still in
the bed when the
annuals and
perennials are gone for the
season.
MOIST BUT NOT
WET - Plants that grow
well in moist conditions but not
entirely wet. Whether it be in the
ground or in a container.
MONOECIOUS
- A plant which bears both male and
female flowers. (Compare to
Dioecious)
MOON
GARDENING - A very
romantic night garden created by
using white night flowering plants
or light variegated leaf varieties
of plants. Really a pretty effect.
MOWING
STRIP - Sometimes known
as an edging strip. The six to eight
inches of space between the lawn and
the flower or vegetable bed. The
flat area decoratively made with
cement or brick.
MULCH
- Any loose, usually
organic
material (can be small pebbles) over
the soil as a protective covering or
for decorative purposes. Common
mulches are ground bark, saw dust,
leaves, pine straw or eucalyptus.
MUTATION
- Any change in a plant which will
lead to a new feature. Fortunately
or unfortunately, this can be
inherited.
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-N-
NATIVE
- This refers to a plant that grows
in the same habitat in which they
originated. These plants can be
native to a continent, state, or
region.
NATURALIZED
- Plants that will behave like
native plants in a given geological
region. Bulbs naturalize nicely and
lend themselves to a blooming
statement.
NECTAR
- A sugar and water substance
secreted by flowers, this will
attract pollinators like bees and
hummingbirds searching for food.
NEEM
- A botanical insecticide that is
nontoxic. It is derived from the
neem tree (azaderachta indica).
NEMATODE
- A microscopic roundworm that lives
in the soil. There are both harmful
and beneficial nematodes. Harmful
ones take their toll on the roots of
a plant.
NEUTRAL
- This is neither acid nor alkaline;
pH 6.5 - 7.5.
NEW WOOD
- A term often used in reference to
propagation. That part of the stems
and branches that have grown during
the current season. Some plants will
propagate better on new wood as
opposed to old wood (previous
season's growth.)
NODE
- The point on a stem where a leaf
or bud is attached; the place for
which propagation is used.
NURSERYMAN
- One who is state certified to
practice growing techniques of plant
material making the proper selection
for specific needs.
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-O-
OFFSET
- A young plantlet which appears on
a mature plant. An offset can
generally be detached and used for
propagation as in spider plants or
walking iris.
OPEN
POLLINATED - Any plant
that has been pollinated in the
field. In direct contrast to hybrid
varieties that will grow true to
variety the plants produced will be
true to the parents.
ORGANIC
- Fertilizers and chemicals that
have been obtained from a source
which is or has been alive. Also the
general term used for a type of
gardening using no chemical or
synthetic fertilizers or pesticides.
ORNAMENTAL
- A plant that is grown strictly for
its foliage or flower rather than
for food or any other economic use
(i.e. saucer magnolia.)
OVER
POTTING - Repotting a
plant into a pot which is too large
to allow successful establishment.
The roots may die from too much
moisture.
OVERSEEDING
- Planting on top of an existing
garden or lawn. Rye grass over lawns
for winter. Wildflower seed in
meadows.
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-P-
PALMATE
LEAF - Five or more lobes
arising from one point - hand like.
PARASITE
- Any plant that grows upon another.
It steals its moisture and
nourishment from its host. Mistletoe
is a good example.
PARTERRE
- Symmetry at its best. These are
great ornamental garden beds that
have been geometrically designed and
separated by walkways. The gardens
are most appreciated by an above
view. One of the most famous being
the gardens of Versailles.
PASSALONG
PLANTS - Plants that are
shared between friends and not
easily found in catalogs. Usually
some plant from an older garden.
PEA GRAVEL
- Gravel about the size of a pea.
Used a lot in driveways and
walkways.
PEAT
- The preserved and compressed
remains of dead bog plants. Often
known as peat moss because it is
from sphagnum or sedge peat.
PEAT POT
- Compressed peat into a pot that
can be used for starting seeds. When
planting times comes this entire pot
can be put in the ground and the
roots will grow through the pot as
it decomposes.
PEBBLE TRAY
- A tray filled with pebbles to
create humidity in the environment.
Continual evaporation will take
place up and around the plants.
PEGGING DOWN -
A very effective way to
increase flower production on Bonbon
& Hybrid Perpetual roses that send
up long shoots with oily flowers on
the end. It is a time consuming
method but well worth the display.
This is generally done in the fall.
Instead of pruning, spread the
runners and fasten to the soil with
wire loops. Basically you are
training the plant horizontally.
PELLETED
SEEDS - Seeds that have
been coated with an inert material
just to make the handling of the
seed easier.
PERENNIAL
- A plant which will live for three
years or more under normal
conditions.
PERFOLIATE
- Paired leaves which fuse around
the stem.
PERGOLA
- Sometimes called an arbor, or
walkway covered with trellis work.
Usually climbing plants will cover
the hardscape feature.
PERLITE
- Granular volcanic rock, used to
improve the aeration in potting
soil. No nutrient value.
PERMACULTURE - A very
advanced system of trying to grow
and provide food by using perennial
plants instead of the annuals the
agriculture world uses now for most
of our food.
PETAL
- One of the divisions of the
corolla - generally the showy part
of the flower.
pH - The scale where
the acidity and alkalinity of soil
is measured. It starts at "1" for
acid and goes to "14" for alkali.
Most gardens will fall between 5.5 -
8.6.
PHOTOPERIODISM - The
response of plants to the length of
a day and night (i.e. poinsettias,
cactus, night blooming flowers)
PINCH OUT
- Pinching with the fingers to
remove the tip of a growing shoot to
encourage lateral growth.
PIONEER
PLANTS - The very first
species to grow of the soil has had
a traumatic occurrence, like a fire,
flood, earthquake. The first plants
to take over when a farmstead has
been abandoned.
PIP
- Used in propagation. The side
offshoot of a rootstock. A good
example is lily of the valley.
PLANTLET
- A small plant off the original
plant. A good example is the piggy
back plant these will easily root.
Used in propagation.
PLANT LICE
- This is a reference to aphids
found in British publications.
PLANT PATENT
NUMBERS - This generally
is a catalog referral phrase. For
the general gardener it may not be
important but new plants, like
inventions, can also be patented.
This is a protection for the owner
who created the "new" plant.
PLEACHING
- a popular technique of training
and pruning shrubs and trees into a
wall. Very popular in Europe.
PLUG
- A small but well-rooted seedling
raised in a cellular tray for
covering large areas as in ground
covers or lawns.
POCKET
GARDEN - A small growing
area planted with miniature and
dwarf varieties.
POLLEN
- The yellow dust produced by the
anthers. The male element which
fertilized the ovule.
POLLINATOR
- Who are these wonderful creatures
that make our world grow? People,
bees, moths, butterflies, bats, and
any insect that hops from plant to
plant.
POTAGER
- Giving credit to the French who
inspired this vegetable garden. It
is planted in a formal and
ornamental style.
POT BOUND
- A plant growing in a pot which is
too small to allow proper leaf and
stem growth. Roots will start to
grow in a circle in the pot.
POTPOURRI
- A mixture of sweet smelling
leaves, petals, blooms to create a
perfume in a room. Tussie - massies
in the Victorian era were popular
nosegay potpourri creations.
POTTING UP
- Taking the young seedlings or
transplants into a specific
container for mature growth.
PRAIRIE
GARDENING - Specifically
creating a garden of plants from the
Midwestern states of the U.S. Most
associated with the designer Jens
Jensen.
PRE-EMERGENT
WEED KILLER - A great
idea is good gardening. Although
not organic, this is using a
herbicide to kill the weed seeds to
prevent them from germinating.
PRESSURE
TREATED LUMBER - Lumber
that has been treated with chemicals
to prevent rotting.
PROPAGATION
- For gardening methods, this refers
to the many different ways of
starting new plants.
PRUNING
- The cutting off leaves or branches
within limits in order to remove
dead or diseased foliage or
branches. Also used to control or
direct growth, increase quality or
yield of flowers or fruit, and to
ensure growth position of main
branches to enhance structural
strength.
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-R-
RADICUMS -
These plants are special
in that their stems have roots that
will cling as they grow vertically
or grow over the ground. Ivy is a
good example.
RAISED BED
- Any ornamental or vegetable bed
that has soil higher than the
surrounding immediate area.
Sometimes it is bordered by boards,
stone, brick or any material to hold
in the soil. Created to make a
supreme growing area.
REED
- Tall grasses that grow in shallow
water.
REMONTANT
- Repeat bloomer. Plants that will
bloom more than once a year. Tea,
olive, daylilies, or bottle bush.
RE-SEEDING
- Plants that drop their seeds for
next season. Called "easily
re-seeders". Wildflowers and weeds
are the biggest categories.
RESTING
PERIOD - mostly in terms
of bulbs, it is a period of dormancy
where energy is restored to the
plant.
RETAINING WALL
- A wall that has been built on a
slope to keep the soil from sliding
or eroding. It would stabilize the
area.
REVERT
- Sometimes a particular cultivar
might change back to one of its
original species. I.e. Variegation
going to solid green, some doubles
going to single.
RHIZOME
- A thickened stem which grows
horizontally below or on the soil
surface, as in iris rhizomes.
ROCK GARDEN
- An area constructed of larger
rocks arranged to look natural.
Planted with plants that generally
do not need a lot of care.
ROCKWOOL -
This really is the state of the art
rooting medium, and is used in plant
propagation. It is alkaline and one
will have to compensate for this.
ROOT BALL
- Matted roots plus
enclosed soil within the pot of a
container grown plant or when plant
material is transplanted.
ROOT-BOUND
- Often, when plants are left too
long in their container, the roots
become entangled and begin to grow
in circles. There is hope by
separating the roots the plants will
survive when planted.
ROOT CROPS
- Any vegetable that the roots are
edible: i.e. carrots, potatoes,
turnips.
ROOT CUTTING
- the root is used for propagation.
Plants that grow away from the
mother plant and root, can be dub up
and transplanted.
ROOTING
HORMONE - A chemical in
powder or liquid form which promotes
the formation of roots at the base
of a cutting. Contains hormones and
anti-fungus growth prohibitors.
ROOT
PRUNING - This is done in
two instances. One when repotting
from one pot to another, roots that
have grown in a circle are trimmed
to promote future growth. Also, when
planting into the garden or
landscape, a plant that needs root
trimming.
ROOT ROT
- Quite common in plants that are
effected by fungus diseases and have
poor drainage.
ROOTSTOCK
- The roots and stems arise from
this part of the plant.
ROOT ZONE
- The entire area where roots are
growing below the plant. Root zones
are important for walking paths and
future plantings.
ROSARIAN
- Those hobbyists or professionals
who specialize in the cultivation of
roses.
ROTATION
- Specifically towards crop
rotation: changing the plants in the
same growing area. This will
decrease the soil born diseased.
ROTENONE
- Material used a lot by
organic gardeners. It is derived
from the roots of tropical legumes.
It does break down in sunlight and
the side effect is that it is toxic
to good and bad insects.
ROW COVERS
- Any type of semitransparent
materials used to cover plants, trap
heat, enhance growth, and provide
protection from frost or winds.
Commercial growers sometimes use
this method.
RUN
- A plant that runs will be growing
rapidly underground. Great for
ground cover but some plants take
over an area by running.
RUNOFF
- When liquids (such as in watering
an area of ground or a fast rain)
washes off quickly a run off is
created. Often pesticides and
fertilizers are washed into
waterways from lawn and garden
runoff.
RUNNER
- A creeping stem which produces
small plantlets along its length.
Sometimes called a "stolen".
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-S-
SALT MARSH
HAY - probably a better
mulch that is collected from the
grasses grown in coastal marshes. It
generally does not contain weed
seeds and is fluffy.
SAP
- the fluid in plants . Most know is
the collecting of maple sap made
into syrup.
SAPLING
- A very young tree.
SCALD
- When plants have an overexposure
to sunlight a discoloration will
develop. Often when plants do not
become acclimated slowly into a
sunny location from being indoors or
from the shade.
SCALE
- Sucking insects. Usually more
prevalent in milder climates. Not to
be taken lightly, and need to be
treated.
SCAPE
- a leafless flower stem that will
grow directly from the base of the
stem. Very common in bulbs.
SCARIFY
- to scratch or break the hard coat
of some seeds, so they will
germinate
easily. Fine sandpaper or just
soaking the seed will do the trick.
SCIENTIFIC
NAME - The
internationally recognized Latin
name of a plant that will be
descriptive of the feature of the
plant, or will commemorate a person
connected with it. The name of the
species will consist of two parts,
the genus name and the species name.
This
system was first started in 1753
by a Swedish botanist, Linnaeus.
SCION
- A suitable piece that is a
desirable specimen of a woody plant,
used in grafting.
SCOOPING
(de-eyeing) - A technique that is
used to produce a shorter and
bushier plant by scraping out the
center eye of the bulb.
SEEDHEAD
- Dried, inedible fruit that
contains seeds.
SELF
POLLINATION - The
transfer of pollen
from one flower to another flower on
the same plant.
SELF-SEEDED,
or SELF SOWING - A
plant's habit of shedding seeds in
the immediate area. They will then
germinate without outside help. Many
annuals use self seeding (i.e.
cleome-marigolds).
SEMI-EVERGREEN
- Those shrubs that will keep some
of their green foliage usually in
mild climates.
SET
- In reference to shallot bulbs and
small onions, as in sets of onions.
SHARP SAND
- Ah, also called builders sand.
This sand is rough. Great for
drainage, and propagation, not to
mention starting of seeds.
SHEAR
- A method of pruning in the
landscape. Often in reference to
hedges.
SHEET
COMPOSTING - A method of
piling un-decomposed organic
materials over the soil and waiting
for decomposition. At times working
it in the soil.
SHRUB
- A woody plant with a framework of
branches and little or no central
stem. Compare to tree.
SIDE DRESS
- When one fertilizes above the
ground without working it in.
Placing the fertilizer on the side
of the plant material. Sometime side
dressing is used to encourage growth
during the season.
SIEVE
- A garden sieve is a frame with a
mesh bottom. Mainly used for
separating compost, but sometimes
used in very stony gardens. Home
made ones made out of two by fours,
2' x 2' with a 1/2 inch hardcloth
bottom is most handy.
SLIP
- An older fern once used for a
cutting. Slips are taken for
propagation.
SLOW RELEASE
FERTILIZER - Generally a
natural fertilizer that over a
period of time will release its
nutrients. Always a good practice to
use.
SOAKER HOSE
- Hoses that have hundreds of mini
holes to let the water out slowly
and can be left on for a long period
of time. Great for vegetable gardens
and beds that need to be watered
frequently.
SOIL AMENDMENT
- Anything added to the soil to
improve the present situation, i.e.
drainage, nutrients, or makeup.
SOIL LESS
GARDENING - Another name
for hydroponics. Gardening in
something other than soil or water
and rocks.
SOIL LESS MIX
- This would be any medium for
containers. The substances would be
like peat moss, perlite,
vermiculite, or materials like sand
or bark. However, fertilizing is a
must since none of these have any
real nutrient quality.
SOIL
POLYMERS - Super
absorbent polymers that have been
around for a while, that can be
added to retain moisture containers.
It will absorb many times over its
weight in water. Use sparingly.
SOLARIZATION - The
process by which one can sterilize
the soil by the sun. Cultivate the
area to be isolated, water well, and
then cover with 2 - 4 mil of clear
plastic.
SOLUBLE
FERTILIZER - A fertilizer
that is mixed with water and used
not only for root fertilizing but
can also be sprayed on the foliage.
A common practice for houseplants
but gardeners can use the practice
in their landscape too.
SOOTY MILDEW
- is a fungus. It looks like a dark
gray spots or in general scum on
stems and leaves. It is formed from
the honey dew excreted that is
produced by aphids and other
insects. The honeydew that is
created is attacked by the mildew
and will go after the sugars in the
honeydew.
SOOTY MOLD
- Several insect pests will release
honey dew, which is a sticky
substance that then mold grows on
(thus the black coloring). Most
associated with aphids. Use a soapy
water solution to rinse off the
insect pest.
SPECIES
- This is a group of plants that
have common characteristics. It is a
basic unit of plant classification.
SPECIMEN PLANT
- A plant that is high lighted to
show off its special qualities.
Sometimes used as a focal point.
SPENT
- Bulbs and flowers of a plant that
have finished blooming. It's time to
deadhead them.
SPHAGNUM
MOSS - Many mosses
native to bogs are sphagnum. Used
for the lining of hanging baskets
and for air layering (i.e. Spanish
moss.)
SPICES
- seeds, fruits, or roots (rhizomes)
used to flavor cooking.
SPORE
- A microscopic reproductive cell of
non-flowering plants (i.e. ferns,
lichens, mosses, fungi, and algae).
Many times we can see spores on the
backside of ferns.
STANDARD
- Those plants, especially roses,
that are grown so all the branches
are brought to a head on one single
stem. A standard can also be a full
size fruit tree.
This is done strictly
for esthetics.
STEM CUTTING
- A portion of a stem that only
includes one or more nodes taken
from a plant. This will not include
the apex or the tip. Stem cuttings
are a great way to propagate.
STERILIZED
SOIL - It is soil that is
steam- or chemically sterilized.
Harmful organisms have been killed
but helpful bacteria have been
spared. Sold commercially.
STIGMA
- This is the part of the female
organ of the flower which receives
the pollen.
STOCK
- The "mother plant" of which
cuttings are taken. Stock is also
in reference to plants being grafted
on "stock". Many hybrids are grafted
on good stock material because they
have better and sturdier qualities
for growing.
STONE
- The inner fruit wall of a
drupe. The
stone encloses the seed (i.e. plums
and cherries).
STRETCHING THE ZONE
- For very ambitions gardeners
who want to grow plant material
beyond their climate area.
Collectors are forever trying to
grow what might not. (see
zone article)
SUBTROPICAL
- Very specific area, 5 to 10
degrees higher in latitude than the
Tropic of Cancer of the Tropic of
Capricorn.
SUCCESSION
PLANTING - When one
plants a fast crop one week or so
after another. The object is to keep
a constant supply on hand, like
squash, lettuce, truck farmers often
practice this technique.
SUCCULENT
- Succulent plants have leaves
and/or stems which are thick and
fleshy. They often have waxy outer
layers that allow the plants to
retain water well.
SUCKER
- A shoot which arises from an
underground shoot or root of a
plant.
SUN SCORCH
- Spots on leaves that are caused by
exposure to strong sunlight. Often
not acclimating plants for the
season creates sun spots. Just trim
off and let new growth develop.
SUNKEN GARDEN
- A landscape design where some of
the garden is at a lower point than
the rest of the garden. Created for
interest.
STAKING
- Plants that grow tall with little
stem support need to be staked.
Perennials and tomatoes come to
mind. Any means of support will
work: canes, cages, wire loops, etc.
SWAMP
- An area of land that usually
flooded and contains woody plants -
compared to a bog it has drainage.
Cypress trees grow well in a swamp.
SYSTEMIC
INSECTICIDE - A pesticide
which can be granular or liquid,
used at the base of the plant and
travels through the vascular stream.
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-T-
TAMPING -
A method by which one
will press that soil around a plant
that has just been planted making
sure soil is secure and firm around
the roots.
TAP
ROOT - The main root,
sometimes swollen, which grows
vertically into the soil. It is hard
to transplant perennials with tap
roots.
TENDER
- An indoor plant which requires a
minimum temperature of 60°F.
Occasional short exposure to
temperatures below this level may be
tolerated.
TENDRIL
- Plants (like sweet peas, clematis,
and grapes) producing a cordlike
structure that will help to support
themselves.
TERRA COTTA
- An Italian term that means "baked
earth". These clay pots are unglazed
and excellent for growing most plant
material. They do dry out quickly
and salts will bleed through the
porous surfaces. Emily Compost's
most favorite growing container.
TERRARIUMS
- Any transparent container with a
cover so plants may grow. Sometimes
called a bottle garden and in the
early 1900's Victorian era called
Wardian Cases.
TERRESTRIAL
- A plant which grows in the soil as
opposed to aquatic or perched on
trees.
TETEUR
- A French word meaning "trainer".
Any structure that is in the shape
of an obelisk or pointed tower. This
trellis will support vines of color.
THATCH
- Any material that does not quickly
decompose. When a lawn becomes
"clogged" with old drying grass
cuttings and matted leaves, this is
referred to a build up of thatch.
Often it does not decompose fast
enough for a healthy lawn and needs
to be removed, either manually or by
a thatching machine.
THICKET
- Any area that has a lot of
miscellaneous undergrowth, generally
of small shrubs, bushes, and vines.
THIMBLE
and THUMB
POTS - Not generally
spoken of a lot in the United
States, but in Britain are
interesting miniature clay pots.
Thimble pots are 2 x 2 inches and
thumb pots are 2.5 x 2.5 inches.
THINNING
- Picking out the overpopulated
seedlings in any flower or vegetable
bed, to make a better growing
condition for the rest. Making
better spacing and esthetics for the
growing area.
THRIPS
- Insects that feed on all parts of
the plant: leaves, flowers, buds,
and stems. Very popular in the
destruction of daylilies (this word
is both singular and plural).
THUG
- Not your normal street gangster,
but close to it. Thugs are invasive
plants. We enjoy their
attractiveness but they will take
over a garden. They are growing in
the right conditions, but ironically
thugs can make a statement when they
are perennials in the right garden.
TILL
- Another definition for
cultivating. Plowing the earth and
preparing it for planting.
TIP CUTTING
- A cutting taken from the top end
of a shoot.
TIRED SOIL
- A term referring to a piece of
land that has been exhausted of its
nutrient value. It does not produce
like it once used to. When a
particular crop has been grown too
long in once place. The Southeast
U.S. created tired soil from
planting cotton for too many years.
TISSUE CULTURE
- A very sterile practice of
propagating plants from the mother
plant. Generally done in laboratory
conditions. Orchids, hosta and
daylilies are done by this method.
TOPIARY
- The horticultural art of clipping
and training woody plants to form
geometric shapes or interesting
patterns.
TOPDRESS
- A process that means to apply on
the surface of soil. Usually
referring to the spreading of
organic material such as ground bark
or manure, compost, or fertilizer.
TOPSOIL
- Soil that is on the very top,
hopefully containing a lot of humus
and good elements needed for growth.
TRADE NAME -
An arbitrary name created by a
nursery or some other organization
to distinguish it from all others -
a way of protecting it from misuse
legally.
TRAILING
- Any plant that grows long stems
and will grow along the ground and
will root as it goes along.
TRANSPIRATION - The loss
of water through the pores of the
leaf.
TREATED
SEEDS - Seeds that have
been protected against diseases.
They are toxic.
TROPICAL PLANT
- A plant that grows in tropic
zones. It is what northerners make
up as houseplants.
TRUG
- We must include the "English
basket". It basically is just a
shallow basket for light chores,
like carrying flowers and fruits and
veggies. Traditionally made out of
wood. Very functional.
TUBER
- A storage organ used for
propagation. It may be a fleshy root
(e.g. Dahlia) or a swollen
underground stem.
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-U-
UNDERPLANTING
- Growing short plants such as a
ground cover under taller plants.
Under taller trees, some shrubs
would be used as an underplanting.
UNDERSTORY
- The smaller trees that grow below
the major forest.
UNDER GLASS
- A term in older books referring to
"growing under glass", essentially
growing in a greenhouse.
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-V-
VARIEGATED
LEAF - A green leaf
design which is blotched, edged, or
spotted with yellow, white, or cream
color.
VARIETY
- One of possibly many
closely-related plat species. The
variety name is usually in Latin.
VARIETY
NAME - This is the
scientific name or botanical name of
a specific plant. It is in italic
print.
VEGETATION
- An all encompassing word for the
plants of an area or territory.
VERMICULITE
- A light-weight, mineral called
mica that is added to potting
mixtures to improve root growth via
aeration and has moisture retaining
abilities. There is no nutritive
value in the mineral.
VERNALIZATION
- The time factor of cold days
needed by certain plants to produce
a bud. Such as in apples need a
certain amount of cold days to
create their buds.
VERTICILLIUM
- A fungus disease that will cause
wilting and death. This is the "V"
in "V,F,N".
VFN
- Indicate whether or not a plant is
resistant to verticillium wilt,
fusarium wilt, or certain nematodes.
Many times all three.
VIABILITY
- The possibility of germination.
Seeds vary in their time of
viability from a few days to 20
years, if not hundreds of years.
Storage conditions will affect the
viability, the best being low
temperatures and humidity.
VICTORY GARDEN
- Homeowners during World War II,
who grew gardens to provide for
themselves or to support the war
effort.
VIRUS
- A plant disease that cannot be
eliminated by a chemical means. Some
viruses have created stripped
tulips. Most are feared by growers.
VOLUNTEER
- Although this could be your best
friend, helping out once in a while
in the garden, this is a "not
planted" specimen blown in from a
neighbor's yard or a surprise, from
a bird or other source.
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-W-
WARDIAN CASE -
In the 19th century a
plant explorer and collector by the
name of Dr. Nathaniel Ward designed
a glass case to transport his
findings. He traveled between
Australia and England. During the
Victorian era often Wardian Cases
were highlighted in the home. We now
have terrariums and bottle gardens.
WARM SEASON
GRASS - These grasses are
grown in temperatures above 70 and
80 degrees. They will go dormant in
winter. Examples are Bermuda grass,
a variety of St. Augustine. Other
warm season grasses are ornamental
such as pampas grass and fountain
grasses.
WATER GARDEN
- Any man made pool, forms, or
container that aquatic plants are
planted. They especially are
becoming popular in the 21st Century
fo r backyard enjoyment.
WEED
- An uninvited guest in gardens.
WET FEET
- A condition when the roots of
plants are in standing water. They
will eventually rot if they don't
normally grow in wet conditions like
aquatic plants.
WETABLE POWDER
- A material that will not dissolve
in water, but remains suspended in
it. Most often referred to
pesticides when used as sprays.
WHIP
- A very thin shoot with no lateral
branches of a woody plant. Sometimes
the first year of a grafted tree.
WIDE ROW
GARDENING - A method in
which vegetables and cutting gardens
are laid out usually two to three
feet wide instead of a single file
row of plants. This is to be
efficient in spacing the plants.
Many plants grow together.
WILDFLOWER
- Plants that can be native or
exotic when growing out in a
non-cultivated area. They flower and
are enjoyed by all. Many wildflowers
of course can be cultivated in
backyard gardens.
WILT
- A plant disease. This can be
caused by bacteria or fungi. Many
are carried by insects.
WIND BREAK
- A purposeful planting of hedges
and trees to protect a field, home,
or garden against forceful winds,
providing a shelter and preventing
damage.
WINDOW BOX
- A container placed under a window,
very cottage-like in gardening
decor.
WINTER KILL
- A condition that happens when
plants have not hardened enough to
withstand sever winter conditions.
The plants may not be hardy for the
zone. Die back needs to be pruned in
the spring clean up.
WOODLAND
GARDEN - This garden is
usually established beneath
deciduous
trees. It may vary from partial to
deep shade and usually with plant
material where roots need to remain
undisturbed.
WOODY PLANT
- These are usually perennial plants
(i.e.. vines, shrubs, trees, and
bamboos) that have permanent stems.
These branches get bigger every
year.
WORM
(eisenia foetida) - A very
unappreciated mover & shaker of the
earth. Mother Nature's natural
composter.
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-X-
XERISCAPE
- This is a patented name that
stands for a landscaping method that
is based on low water volume and
drought adaptable plants..
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