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TERMS & DEFINITIONS
- A -
Acidic soil - Soil with a pH value of less than 7.0.
Acre - A unit of area in the U.S. customary
system, used in land measurement and equal to 4,840 square
yards, or 43,560 square feet.
Alkaline soil - Soil with a pH value of more than 7.0.
Annual - A flowering plant that
lasts only one season.
Arbor - A shady garden shelter or
bower, often made of rustic wood or latticework on which vines,
roses, etc. are grown.
- B -
Ball & burlap - The wrapping of the root ball of a field-grown tree or shrub
in a single piece of burlap usually held together with twine.
The organic nature of burlap allows it to be left in the hole
when planted.
BALUSTRADE - A complete railing system consisting of a top handrail
supported on balusters (which sometimes rest on a bottom rail).
Bark - The surface layer of the
trunk and branches of woody plants.
Biennial - A plant that grows
one year, produces flowers, fruits, and seeds the next year,
and then dies.
Bulb - A fleshy underground
plant structure that contains the nutrients, energy, and seed
to produce a plant. Bulbs are typically buried in the ground at
least one season before they emerge. Daffodils, lilies, and
tulips are common examples of bulbs.
- C -
CLASS
2 PERMEABLE BASE -
Consists of 70% 3/4" gravel, 20% plaster sand, and 10% pea
gravel.
Conifer - Cone bearing tree of the pine family, usually evergreen.
COURSE - A horizontal range of stone units (bricks or blocks) running
the length of a wall.
- D -
Deadheading - The removal of spent flowers to tidy up a plant and force it
to put its energy into producing more flowers.
Deciduous - Shedding or losing foliage at the end of the growing season.
Detention pond - A lined or unlined hole in which surface drainage is
captured, held temporarily, and then released steadily.
Dieback - The death of tips of shoots caused by damage or disease.
Drainage - The movement of water across a piece of property. Drainage is
divided into two basic types: surface drainage, which is
visible and above the ground or on top of surfaces such as a
roof, patio, or drive; and subsurface drainage, which occurs
below ground.
Drain field - The configuration of
surface swales and subsurface drain lines necessary to
adequately gather and direct all the drainage on a piece of
property.
Drip irrigation - An irrigation system that uses low volumes of low-pressure
water emitted drip by drip at the base of a plant. This is the
most economical and efficient way to water.
- E -
Easement - The right-of-way
claimed by a municipality or utility, usually described as a
number of feet from the edge of a road or property line within
which the owner of the easement has certain rights and
limitations.
Edging - A crisp edge between
areas of the garden. Most typically used between a lawn and a
flowerbed.
Evergreen - Persisting and remains green throughout the year.
- F -
- G -
Ground cover - Plants that are used
to cover bare ground; they usually spread to form dense
colonies that coke out weeds.
- H -
- I -
IPM (Integrated pest management) - IPM is a decision making process using accumulated plant and
pest knowledge to detect, monitor and predict out breaks.
- J -
- K -
- L -
Landscape
fabric - A
synthetic material that allows water to pass through but block
light, soil, and weed roots from penetrating.
Low-voltage light - A light fixture (or system of
fixtures) that operates on 12-volts instead of the standard
120-volt household current. Low-voltage systems use less
wattage yet provide comparable performance to many 120-volt,
higher wattage light bulbs.
- M -
Mulch - A layer of organic or inorganic material placed around plants
to hold in moisture and reduce weeds.
Multi-stemmed - A tree or shrub with several main stems arising from the
ground.
- N -
Nitrogen - One of three essential nutrients (phosphorus and potassium
are the others) for healthy plants. Nitrogen fuels vegetative
growth. On fertilizer packages, it is the N in N-P-K.
- O -
- P -
PARQUETRY - A flat inlay of stone floors in closely fitted geometrical or
other patterns, often including two or more colors or
materials.
Peat moss - A usually weed-free form of organic matter created by the
partial decomposition of sphagnum moss. It increases soil
acidity and retains moisture.
Perennial - A flowering plant that
comes back every year.
Pergola - A free standing structure with a roof or lath canopy designed
to cast shade.
pH - The reciprocal of the hydrogen ion concentration of a medium.
A value on a scale of 0 to 14 gives a measure of the acidity or
alkalinity of a medium; pH values of 0 to 6.5 indicate acidic
conditions, a pH value of 7.0 is neutral and pH values of
greater than 7.0 are alkaline.
Phosphorus - One of the three essential nutrients plants require.
Phosphorus promotes fruiting and flowering. On fertilizer
packages, it is the P in N-P-K.
Photosynthesis - The production of organic compounds required for growth in
plants by a complex process involving chlorophyll, light
energy, carbon dioxide and water.
Pinching - Snipping out (or using fingernails to literally pinch out)
the growing point of a plant to promote fuller, bushier plants.
Pollen - The fine, powder-like
material produced by the anthers of flowering plants, and
functioning as the male element in fertilization.
Potassium - One of three essential nutrients required for plant growth.
Potassium promotes root growth and disease resistance. Also
know as potash. On fertilizer packages, it is the K in N-P-K.
Propagate - To create new plants.
Pruning - Removing growth from a plant or tree to maintain its health,
regulate its shape and control flowering.
- Q -
- R -
Raised bed - A bed that is higher
than the surrounding area, often contained within a low
retaining wall.
Renewal pruning - A system in which older wood is regularly removed in favor of
younger growth.
Retaining wall - A structure made of masonry, stone or wood used to hold back
soil, usually for the purpose of creating a level area in front
or behind the wall.
Retention
pond - A hole dug to capture and hold surface
drainage.
REVETMENT
WALL - A wall made of concrete, stone, wood, or other
materials which is built against a stream bank or a steep slope
to prevent erosion.
Rise - The term used to describe the height of an individual step in
a set of stairs.
Root pruning - The removal of part of the root system of a tree to restrict
growth and in fruit trees induce fruiting.
Run - The term used to describe
the length from the front edge of a step to the back edge of a
step in a set of stairs.
RIPRAP -
Irregular broken and randomly sized pieces of rock used for
facing bridge abutments and fills; stone thrown together
without order to form a foundation, breakwater or sustaining
wall.
- S -
Slope - The difference in
height between two points, usually given in a ratio such as
1:4, which means the ground drops 1 vertical foot for every 4
feet of horizontal distance.
Soil - Soil is a living
breathing complex mixture of minerals, organic matter and
living organisms. It provides support for plant roots, and is a
source of water and nutrients essential for plant growth.
Soil
compaction - Compaction from foot traffic,
construction or other activities crushes small roots and makes
soil impervious to invasion by new roots.
Soil structure - The physical texture and content of the soil independent of
nutrition. Structure impacts the way a soil drains and holds
onto moisture.
Soil test - A simple process by
which the basic nutrients, elements and pH of a soil can be
determined.
Specimen plant - An individual tree or shrub that is selected, tended and
placed to be viewed as a sculptural form.
Sucker - A shoot that arises
at or below ground level from a plant's root or underground
stem.
- T -
Thinning out - The selective cutting
away of individual branches to create open spaces within the
plant, remove dead limbs or branches, produce symmetry and
train a plant to look more natural. It also aids in better
fruit production.
- U -
- V -
Variegated
leaves - Leaves
that are patterned in a different color.
VENEER STONE - Any stone used as a decorative facing material which is not
meant to be load bearing.
- W -
- X -
- Y -
- Z -
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