All required landscaping, buffers, landscaped screens, and greenbelts shall comply with the following standards:
A. Minimum standards for plant material.
(1) All plant materials shall be hardy to Kent County and be free of disease and insects.
(2) No substitution of plant species or sizes shall be allowed unless approved by the Zoning Administrator, in writing.
(3) All plant material shall be installed in such a manner so as not to alter drainage patterns on the site or adjacent properties, or obstruct vision for safety of ingress or egress.
(4) All plant material shall be planted in a manner so as to not cause damage to utility lines (above- and below-ground) and public roadways.
(5) All required landscaping shall be planted prior to the issuance of a certificate of occupancy (with allowance for delay resulting from inclement weather) or within such greater period of time as may be permitted, in writing, by the Zoning Administrator.
(6) All landscaping shall be hardy and shall be maintained thereafter in a neat, healthy and orderly manner following accepted horticultural practices. Withered, dying and/or dead plants shall be replaced within a reasonable period of time, but not longer than one growing season.
(7) Mulch or similar material, by itself, does not constitute landscaping.
(8) Minimum plant sizes at time of planting shall conform to the following requirements:
Tree Type | Minimum Size* |
|---|
Deciduous canopy tree | 2 1/2-inch caliper |
Deciduous ornamental tree | 2-inch caliper |
Evergreen tree | 7 feet in height |
Deciduous shrub | 2 feet in height |
Upright evergreen shrub | 2 feet in height |
Spreading evergreen shrub | 24 inches spread |
NOTES: |
|---|
* | Larger or varied shrub and tree sizes may be required by the Planning Commission to maintain a natural appearance, especially for large areas that are planted with vegetation, such as berms, buffers, greenbelts and landscaped screens. |
(9) In order for plants to achieve the required horizontal and vertical landscaping and/or screening effects within a reasonable period of time after initial installation, all trees, shrubs and other plants shall be well-maintained and regularly watered to assure their continued viability.
(10) The overall landscape plan shall not contain more than 25% of any one plant species.
(11) The use of cobble stones, mulch, crushed stones, pavers, or other nonliving material as a ground cover in planting beds shall be minimized. Nonliving materials may be used to accent or protect living plant material, but shall not dominate the landscape design.
(12) Trees and shrubs in required greenbelts and buffer zones shall be arranged in informal groupings and irregularly spaced to simulate a natural setting, unless site specific conditions are such that a more formal arrangement is appropriate, as determined by the Planning Commission.
(13) Plants that are placed in two or more rows shall be staggered.
(14) Trees and shrubs shall not be placed closer than four feet to a fence, wall, or property line.
(15) Landscaping shall be provided adjacent to buildings in order to provide shade, minimize energy demand, and/or to enhance the general appearance of the building and site.
(16) For the purpose of applying the landscape requirements of this article, a corner lot shall be considered as having a front yard along each intersecting street, and, accordingly, the required front yard landscaping shall be provided for both street frontages.
(17) Plant materials shall be planted and maintained so as not to create any sight obstruction near street intersections.
(18) Applicants shall give consideration to utilizing plant materials to assist in stormwater management on the site, including the establishing of rain gardens and other effective bioretention measures.
(19) If required by the Planning Commission, prior to final site plan approval, the applicant shall provide to the Township a financial guarantee in the form of a letter of credit or other permitted form of guarantee in a sufficient amount to insure the installation and continued maintenance, for a period of two years, of all required landscaping. The financial guarantee may be included with any other such financial guarantee required by the Township with respect to the land use being approved.
B. Preservation of existing trees and other landscape elements.
(1) A landscape plan shall provide for the preservation of existing trees of reasonable quality whenever such preservation is feasible, particularly in proposed greenbelts or along a public roadway. Relocation of existing trees within the site may also be permitted.
(2) The Planning Commission shall credit healthy, existing vegetation that has a high probability of surviving after development toward meeting applicable landscape requirements, to the extent that such existing vegetation supports the intent and complies with the standards of this article.
(3) If trees or other vegetation which are designated for preservation and for which landscaping credit has been given should die, then the applicant shall replace the tree or other vegetation with a tree or other vegetation of the same or equivalent species which will in approximately the same time attain the same height, spread and growth of the tree or other vegetation being replaced.
(4) Existing trees and other vegetation that are to be preserved shall be labeled "to remain," or with some comparable legend, on the landscape plan. During construction, protective measures shall be taken so as to protect all plants that are to be preserved, including the installation of temporary fencing or other barriers.
C. Minimum standards for berms.
(1) Wherever a berm is used to meet the requirements of this article, it shall have a minimum height of three feet and a maximum height of five feet above grade, and the crest shall gently curve with a level crown that is at least two feet wide.
(2) Berms shall be designed to vary in height and shape to create a more natural appearance. An unbroken earth mound of uniform height shall be avoided.
(3) Berms shall be planted so that they have a natural and informal appearance; provided, however, the Planning Commission may require a more formal design if the Commission determines that site conditions or other landscaping factors warrant.
(4) If appropriate, as determined by the Planning Commission, required plant material shall be placed on the top and side slope facing the exterior property line.
(5) If possible, berms shall be constructed so as to maintain side slopes that do not exceed a ratio of one foot vertical rise to three feet horizontal distance. If topography or other site conditions prevent this ratio, retaining walls or terracing may be permitted. If a berm is constructed using retaining walls or terraces, the earthen slope shall face the exterior of the site.
(6) Areas of a berm not containing shrubs, trees, and/or perennial flowers shall be planted with grass or other living ground cover and maintained in a healthy condition.
(7) Berms shall not be designed, constructed or maintained so as to alter drainage patterns such as to have an adverse effect on adjacent properties.
D. Minimum standards for screen walls and fences.
(1) All required plant material shall be on the exterior side of a screen wall or fence.
(2) If a wall or fence is to be constructed with openings, the openings shall not exceed 20% of the wall or fence surface. In any case, such openings shall not have the effect of substantially reducing the required obscuring effect of the wall or fence.
(3) When a screen wall or fence has both a finished face and an unfinished face, the finished face shall be installed so that it is directed toward the exterior side of the development site, or the side which will be most visible to the general public, as determined by the Planning Commission.
(4) Screen walls and fences shall be designed, constructed and maintained so as not to alter drainage patterns such as to result in adverse effects on the site or on adjacent properties.