Street Wall & Foundation Planting
Technical Standards for Street Wall & Foundation Plantings 
General- street wall or façade planting areas shall be used to separate pedestrian zones, approach walks and parking lots from direct contact with building walls. This will allow for storm water collection from roof tops, protect the termite shield along building walls by making it accessible for periodic renewal and will provide a better aesthetic experience upon entering public buildings.
Minimum Length- shall be the length of the public building minus access doors and a proscribed percentage of building elevation window space.
Minimum Width- minimum width of street wall or foundation wall planting area shall be five (5) feet for commercial land uses.
Minimum Area- length times width of planting area.
Building Wall Opacity- eighty (80) percent of the building wall shall be planted. This percentage recognizes that twenty (20) percent of the building elevation will be used for walls and windows. Under some conditions associated with architectural design the required screen percentage may be increased or decreased with approval of the landscape administrator.
Planting Area Character- level to sloping graded planting area or masonry retaining wall enclosed planting area with built up plant beds planted with small trees, shrubs, ground covers, annuals and perennials.
Minimum Planting Area- per Class C tree shall be fifty (50) square feet. Large container shrubs and B&B shrubs shall have a planting area as required by the landscape architect. Seven (7) gallon shrubs shall have an area a minimum of sixteen (16) square feet, three (3) gallon shrubs shall have a minimum area of four (4) square feet, one (1) gallon shrubs or ground covers shall have a minimum areas of two and one half (2.5) feet, and four (4) inch container stock shall have an area of one (1) square foot to grow in.
Minimum Plant Bed Design- planting beds for Class C trees, small trees, shrubs, and ground covers are required for all residential and commercial landscape screens. These planting beds shall be composed of a raised planting bed a minimum of eight (8) inches deep over a scarified sub base and composed of an amended planting mixture, mulched with a minimum of two (2) inches of aged pine bark mulch and top dressed with one (1) inch of pine bark straw to prevent washing.
Soil mix fertilizer amendment and chemical weed control composition shall be as the landscape architect may specify.
General Planting Standard- Planting minimum of four (4) Class B or eight (8) Class C trees and sixty (60) 3 gallon shrubs must be planted for every one hundred (100) linear feet of building façade. Flowering shrubs, perennials, annuals and ground covers shall occupy the remainder of the planting area.
Spacing- Class B trees shall be spaced twenty-five (25) feet on center, Class C trees shall be spaced ten to fifteen (10 to 15) feet on center. Large container shrubs and B&B shrubs shall be planted as required by the landscape architect. Seven (7) gallon shrubs shall be spaced four to six (4-6) feet on center, three (3) gallon shrubs shall be spaced two to three (2-3) on center, one (1) gallon shrubs or ground covers shall be spaced eighteen to twenty-four (18-24) inches on center, and four (4) inch container stock shall be planted twelve (12) inches on center.
Planting Configuration- may be geometrically formal or informal as the landscape design plan or building architecture elevation may require.
Minimum Plant Size- Class B trees shall be twenty-five (25) gallon, 2” caliper, 8-10’ tall, multi-trunk or standard. Class C trees shall be 4-6” tall at time of planting. B&B shrubs shall be thirty-six to forty-eight (48) inches tall upon planting, seven gallon shrubs shall be a minimum of thirty-six (36) inches tall at time of planting, three (3) gallon shrubs shall be a minimum of twenty-four (24) inches tall at time of planting and all one (1) gallon shrubs shall be a minimum of fifteen (15) inches tall at time of planting. All plants must conform to these standards or the general plant material size specifications of the American Nursery & Landscape Association which ever is greater.
Other- all landscape beds shall be weed. Site furniture, walkway lighting, fountains, seating, green screens, decorative art may be used in combination with this planting as the landscape architect may design.
