[R.O. 1993 § 415.180; Ord. No. 786 § 1, 7-18-2005]
The following definitions shall apply in interpretation and enforcement of this Article, unless otherwise specifically stated:
BUFFER, PERIMETER LANDSCAPEA continuous area of land set aside along the perimeter of a lot in which plant materials may be used to provide a transition between and to reduce the environmental, aesthetic and other impacts of one type of land use upon another.
CANOPY TREEA self-supporting woody plant or species normally growing to a mature height of not less than twenty (20) feet and a mature spread of not less than fifteen (15) feet in the St. Louis metropolitan area. Clusters of more than one (1) tree may be used when it is demonstrated to the Planning and Zoning Commission that the grouping of trees will, at maturity, surpass the fifteen-foot diameter requirement and that the grouping of trees is suitable for the proposed location.
CULTIVATED LANDSCAPE AREAPlanted areas that receive routine maintenance, such as mowing, irrigating, pruning, fertilizing, etc.
DEVELOPMENTAny proposed material change in the use or character of the land, including, but not limited to, land clearing or the placement of any structure or site improvements on the land.
DRIP LINEA vertical line extending from the outermost branch tips of a tree perpendicular to the finished grade.
GROUND COVERPlants, other than turf grass, normally reaching an average maximum height of not more than twenty-four (24) inches at maturity.
HEDGEA landscape barrier consisting of a continuous, dense planting of woody vegetation which may be either composed of trees or shrubs.
INCOMPATIBILITY OF LAND USESAn issue arising from the proximity or direct association of contradictory, incongruous or discordant land uses or activities, including the impacts of noise, vibration, smoke, odors, toxic matter, radiation and similar environmental conditions.
IRRIGATION SYSTEMA permanent, artificial watering system installed below grade designed to transport and distribute controlled amounts of water to plants.
LANDSCAPE AMENITIESAny combination of non-living landscape material, such as rocks, pebbles, sand, mulch, walls, fences or decorative paving materials.
LANDSCAPE PLANTINGSAny combination of living plants, such as grass, ground cover, shrubs, vines, hedges or trees.
MULCHNon-living organic and synthetic materials customarily used in landscaping designed to retain moisture, stabilize soil temperatures, control weed growth and retard erosion.
PLANT COMMUNITYA natural association of plants that are dominated by one (1) or more prominent species or a characteristic physical attribute.
SHRUBA self-supporting woody perennial plant of low to medium height characterized by multiple stems and branches continuous from the base, usually not more than ten (10) feet in height at its maturity.
SITE SPECIFIC PLANTINGThe selection of plant materials which are particularly well suited to withstand macroclimate and microclimate conditions that are specific to that location.
SUBSTANTIAL CHANGE IN LAND USE1. A change in land use that increases the intensity of land use; or
2. A change in land use that creates an incompatibility or increases the incompatibility of adjacent land uses; or
3. An increase in the total floor area of multiple dwellings or non-residential buildings that results in increased traffic generation.
TOPPINGThe severe cutting back of limbs to stubs larger than three (3) inches in diameter with the tree's crown to such degree so as to distort the normal canopy shape, thus disfiguring the tree.
UNDERSTORY PLANT MATERIALAssemblages of natural low-level woody, herbaceous and ground cover species which exist in the area below the canopy of the trees.
UNDERSTORY TREEAny self-supporting woody perennial plant which has a diameter at breast height (dbh) of two (2) inches or more and which normally attains an overall height of at least fifteen (15) feet at maturity, usually with one (1) main stem or trunk and many branches. It may appear to have several stems or trunks in several species.
VIABLEWhen referring to a tree, shrub or other type of plant, is a plant that, in the judgment of the Building Commissioner or his/her designated representative, is capable of sustaining its own life processes, unaided by man, for a reasonable period of time.