Definitions. As used in this chapter, the following terms shall have the meanings indicated:
DECIDUOUS PLANTA woody perennial which loses its foliage at the end of each growing season.
DENSE SCREENA series of vegetative plantings which provides essentially an opaque screen.
DRIP LINEAn imaginary ground line around a tree that defines the limits of the tree canopy.
FOUNDATION AREAThe ground area immediately adjacent to a building on all sides thereof. Foundation areas extend a minimum of four feet in all directions from the foundation of the building.
GROUND COVERA low perennial, can be flowering (excluding annuals and turf grasses) with a mature height of between three inches and 18 inches.
ISLANDIn parking area design, a raised planting area, either terminal or landscape divider strip, usually curbed, and placed to guide traffic, separate lanes, limit paving (impervious surface), preserve existing vegetation, and provide space for landscaping which helps to screen and shade parking lots for the purpose of minimizing heat gain.
LANDSCAPE PLANThe preparation of graphic and written criteria, specifications, and detailed plans to arrange and modify the effects of natural features such as plantings, ground, and water forms, circulation, walks, and other structural features.
LANDSCAPINGDefined as any combination of living plants, such as trees, shrubs, vines, ground covers, flowers, or grass; natural features such as rock, stone, bark chips, or shavings; and structural features, including, but not limited to, fountains, reflecting pools, outdoor art work, screen walls, fences, or benches.
PARKING AREAThat area within an off-street parking lot which includes any paved surface within 10 feet of a parking space.
PLANTING UNIT (PU)A unit of measure used to determine the quantity of plantings required in a residential, commercial, industrial, or other development project. For the purposes of this chapter, one planting unit (PU) equals one major deciduous tree, two minor deciduous trees, two evergreen trees, five shrubs, or 500 square feet of ground cover.
REGISTERED LANDSCAPE ARCHITECTA person who holds a license to practice landscape architecture as defined in and in accordance with Pennsylvania and/or Maryland state law.
SCREENINGA method of visually shielding or obscuring one abutting or nearby structure or use from another by fencing, walls, berms, or densely planted vegetation or a combination thereof.
SHRUBA multi-stemmed woody plant differing from a tree by its low stature and habit in branching from the base.
TREE CALIPERThe thickness of a tree trunk as measured six inches above the natural ground level at the base of the trunk, for trees up to four inches in caliper. For trees above four inches in caliper, the thickness of the trunk should be measured 12 inches above the natural ground level at the base of the trunk.
TREE PROTECTION ZONEThe area around a tree corresponding to the drip line of the tree canopy or 10 feet in all directions from the trunk.
TREE, EVERGREENAny self-supporting woody plant with one well-defined trunk, a conical shape and needle-like or scale-like foliage retained year-round which attains a height of at least 25 feet at maturity, with a five foot minimum height at time of planting. See Subsections
F and
G for lists of permitted and non-permitted trees.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
TREE, MAJOR DECIDUOUSAn overstory/canopy tree with a minimum mature height of over 30 feet and a minimum caliper at the time of planting of 1 1/2 inches caliper and a minimum height of five feet. See Subsections
F and
G for the lists of permitted and non-permitted trees.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]
TREE, MINOR DECIDUOUSAn understory or small tree type that typically will attain a mature height of at least 10 feet but generally not over 30 feet and a minimum caliper at the time of planting of one inch. See Subsections
F and
G for lists of permitted and non-permitted trees.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. I)]