§ 5.02 GENERAL LANDSCAPING REQUIREMENTS.
   A.   General site requirements. All developed portions of the site shall conform to the following general standards, except where specific landscape elements, such as a , , or screening are required:
      1.   All unpaved portions of the site shall be planted with grass, ground cover, shrubbery, or other suitable live plant material. Such plant material shall extend to the edge of any abutting paved area, roadway, or gravel shoulder, except that trees and shrubs shall be set back a minimum of ten feet from the edge of any uncurbed paved area, roadway, or gravel shoulder. Grass areas in the front of all nonresidential uses shall be planted with sod or hydro-seeded.
      2.   A mixture of evergreen and deciduous trees shall be planted on nonresidential at the rate of one tree per 3,000 square feet or portion thereof of any unpaved open area for which specific requirements do not appear later in this Article. Required trees may be planted at uniform intervals, at random, or in groupings.
   B.    adjacent to .
      1.   Planting requirements. Where required, adjacent to shall comply with the following planting requirements:
 
Type of Plant Material
Minimum Amount Required
Deciduous Shade or Evergreen Tree
1 per 40 linear feet of frontage
Ornamental Tree
1 per 100 linear feet of frontage
Shrubs
8 per 40 linear feet of frontage
 
   For the purposes of computing length of frontage, openings for and sidewalks shall not be counted (see diagram). Trees and shrubs may be planted at uniform intervals, at random, or in groupings. Fractional amounts shall be rounded up to the next whole tree or shrub.
      2.   Location and dimensions. Required adjacent to shall be located totally on private property within a planting strip adjacent to the   . The minimum width of the planting strip shall be 15 feet.
 
Example Calculation for Adjacent to 5.02, subsection B)
Total Width = 250 feet
Width = 30 feet
Frontage = 250-30 = 220 feet
Deciduous or Evergreen Trees Required = 220 feet/40 = 5.5  6 trees required
Ornamental Trees Required = 220 feet/100 = 2.2  3 ornamental trees required
Shrubs Required = 220 feet/40 = 5.5 x 8 = 44 shrubs required
 
   C.   . Where required, shall conform to the following standards:
      1.   Dimensions. Unless otherwise indicated or appropriate, required shall be measured from the of the parking lot or flat ground adjacent to the , and shall be constructed with slopes no steeper than one foot vertical for each three feet horizontal (33% slope), with at least a two-foot flat area on top. may undulate in height, subject to review and approval of design as shown on the site plan. Unless otherwise indicated, the maximum height of required shall be three feet.
      2.   Protection from erosion. Any required shall be planted with sod, ground cover, or other suitable live plant material to protect it from erosion so that it retains its height and shape. The use of railroad ties, cement blocks, and other types of construction materials to retain the shape and height of a shall be prohibited unless specifically reviewed and approved by the .
      3.   Required plantings. 
         a.   Front   .  located in the front of nonresidential shall be landscaped in accordance with the requirements for adjacent to , § 5.02, subsection B.
         b.   Screening .  used for screening other than in the front shall be landscaped in accordance with the requirements for screening, § 5.02, subsection E.
      4.   Measurement of length. For the purpose of calculating required plant material, length shall be measured along the exterior edge of the .
   D.    . Where required, shall conform to the following standards:
      1.   Measurement of length. For the purposes of calculating required plant material, length shall be measured along the exterior edge of the .
      2.   General planting requirements. 
         a.   Grass or ground cover requirements. Grass, ground cover, or other suitable live plant materials shall be planted over the entire area, except where paved walkways are used.
         b.   Tree and shrub requirements. Except where the is used for screening, a minimum of one deciduous or evergreen tree shall be planted for each 30 linear feet or portion thereof of required . Shrubs may be substituted for up to 50% of the total number of required trees, at a rate of eight shrubs for each tree. Trees and shrubs may be planted at uniform intervals, at random, or in groupings.
         c.    width. The minimum width of any required shall be 20 feet, except where used to obscure a screening wall as noted below, in which case the shall be at least nine feet in width.
         d.   Distance from sidewalk. Plant materials other than turfgrass or ground cover shall not be placed closer than four feet to the line where the abuts a public sidewalk.
      3.    used for screening.  used for screening shall be landscaped in accordance with the requirements for screening, § 5.02, subsection E.
      4.   Linking . Every effort shall be made to link on adjacent so as to provide a continuous landscaped or .
   E.   Screening.
      1.   General screening requirements. Unless otherwise specified, wherever an evergreen or landscaped screen is required, screening shall consist of closely spaced evergreen plantings (i.e., no farther than 15 feet apart) which can be reasonably expected to form a complete visual barrier that is at least six feet above ground level within three years of planting. Deciduous plant materials may be used provided that a complete visual barrier is maintained throughout the year. Wherever screening is required adjacent to residentially zoned or used property, the screening must be installed prior to the beginning of site grading and general construction, except where such activity would result in damage to the screening.
      2.   Screening of equipment. Mechanical equipment, such as air compressors, pool pumps, transformers, sprinkler pumps, satellite dish antennae, and similar equipment shall be screened on at least three sides. Insofar as practical, said screening shall exceed the vertical height of the equipment being screened by at least six inches within two years of planting.
   F.   Parking lot . In addition to required screening, all off-street parking areas shall be landscaped as follows:
      1.    ratio. Off-street parking areas containing greater than ten spaces shall incorporate at least 30 square feet of interior per .
         a.   Interior parking lot shall include the following:
            (i).   Internal islands and medians.
            (ii).   Landscaped areas surrounded on three sides by a parking area (i.e., peninsulas or fingers).
            (iii).   Landscaped areas at the corners of a parking area and bordered by parking on at least two sides.
         b.   Interior parking lot shall be located within the parking area to improve its appearance and screen edges, reinforce circulation routes, define pleasing pedestrian routes through the parking lot, and maximize shade and stormwater benefits.
         c.   Interior parking lot landscape areas should be coordinated with the location of light poles and other utilities.
      2.   Minimum dimensions.
         a.   Landscaped areas in parking lots shall be no less than nine feet in any single dimension and no less than 300 square feet in area.
         b.   Landscaped areas in or adjacent to parking lots shall be protected with curbing to prevent encroachment of vehicles. Curbs shall be a minimum of six inches in height and shall be continuous around the parking area, except for required for integrated on-site stormwater management or pedestrian accessibility.
      3.   Other . Required elsewhere on the shall not be counted in meeting the parking lot requirements.
      4.   Required plantings.
         a.   At least 50% of each interior landscaped area shall be covered by living plant material, such as sod, shrubs, ground cover, or trees. Plant materials other than turfgrass or ground cover shall not be placed closer than two feet to the curbed edge of any interior parking lot landscape area. Trees shall be set back a minimum of four feet from the curbed edge of any interior parking lot landscape area.
         b.   A minimum of one deciduous shade tree shall be planted within the parking lot for every ten vehicle in the .
         c.   Plantings within parking lots shall comply with the requirements for unobstructed sight distance set forth in § 2.09. The landscape plan shall indicate the types, sizes, and quantities of all plant material proposed for interior parking lot landscape areas.
   G.    of . Public located adjacent to required landscaped areas and shall be planted with grass or other suitable live ground cover, and shall be maintained by the owner or occupant of the adjacent property as if the were part of the required landscaped areas or .
   H.   Maintenance of unobstructed visibility for drivers. No shall be established or maintained on any or in any parking lot that will obstruct the view of drivers. Accordingly, all shall comply with the provisions concerning unobstructed sight distance set forth in § 2.09.
   I.   Potential damage to utilities. In no case shall material be planted in a way that will interfere with or cause damage to underground utility lines, public , or other public facilities. Species of trees whose roots are known to cause damage to public roadways, sewers, or other utilities shall not be planted closer than 15 feet from any such roadways, sewers, or utilities. Trees shall be set back from overhead utility lines as indicated in the following chart:
 
Mature Tree Height
Minimum Distance from Center of Trunk to Nearest Overhead Utility Line
Up to 15 feet
10 feet
15 to 25 feet
20 feet
25 to 45 feet
30 feet
Over 45 feet
50 feet
 
   J.    of divider medians. Where traffic on , maneuvering lanes, , or similar vehicle accessways is separated by a divider median, the median shall be curbed and have a minimum width of ten feet. A minimum of one deciduous or evergreen tree shall be planted for each 30 linear feet or portion thereof of median. Trees may be planted at uniform intervals, at random, or in groupings, but in no instance shall the center-to-center distance between trees exceed 60 feet. Plant materials other than turfgrass or ground cover shall not be placed closer than two feet to the curbed edge of any landscaped median. Trees shall be set back a minimum of four feet from the curbed edge of any landscaped median.
   K.   Irrigation. The site plan shall indicate the proposed method of watering landscaped areas. Although not required, installation of an in-ground irrigation/sprinkler system is encouraged, particularly in front .
(Ord. passed 7-9-2013)