18.46.120  REQUIRED LANDSCAPED TREATMENT OF FENCES, WALLS AND TRASH ENCLOSURES.
   .010   Required Landscaping.  All fences, walls and trash enclosures containing solid surfaces which are visible from any public right-of-way or private street shall be planted with either clinging non-deciduous vines or fast-growing shrubbery that will screen the fence or wall surface so as to minimize graffiti opportunities. The use of artificial vines shall be allowed in lieu of live vines, provided that such vines maintain a “live” appearance and provide the level of screening provided by this Section.
   .020   All fences and walls that require landscaped screening shall comply with one of the following planting standards:
      .0201   Interior planter (non-deciduous vines only): Clinging non-deciduous vines may be planted on the interior side of the wall or fence and shall be trained to grow through a hole at the base of the wall and attached to the exterior (right-of-way facing) side of the wall via a trellis, nursery wire, or equally effective training device.
         .01   The planter area on the interior side of the wall shall have minimum dimensions of 18-inches in any direction to allow adequate planting space and shall be equipped with an operable automatic irrigation system.
         .02   Minimum 3-inch diameter holes shall be provided at the base of the wall or fence and located a minimum of 5 feet on center.
         .03   Non-deciduous vines shall be planted a minimum of 5 feet on center.
      .0202   Exterior planter (non-deciduous vines or shrubs): If non-deciduous vines are planted on the exterior side of the wall or fence, the planter area shall have minimum dimensions of 18-inches in any direction to allow adequate planting space.  If using shrubbery for screening, the planter area shall have minimum dimensions of 30-inches in any direction to allow adequate planting space.  The planter area shall be equipped with an operable automatic irrigation system.
         .01   Shrubs shall be a minimum of 5 gallons in size at the time of planting and shall be spaced in a manner that will ensure full coverage of the wall/fence.
         .02   Non-deciduous vines shall be planted a minimum of 5 feet on center.
         .03   Non-deciduous vines shall be attached to the exterior of the wall via a trellis, nursery wire, or equally effective training device.
      .030   Full landscape coverage is required for block walls, fences and trash enclosures.  Coverage shall be provided for entire height of structure or 8 feet, whichever is lower.
      .040   At least one vine or shrub shall be provided on wall surfaces less than 5 feet in length and at least two vines or shrubs shall be provided on wall surfaces between 5 and 10 feet in length.
      .050   Effective coverage shall be achieved within 24 months of planting.
      .060   Required irrigation systems shall be maintained in proper working order and landscaping shall be continuously maintained to promote healthy growth. 
(Ord. 6168 § 9; April 27, 2010 :  Ord. 6317 § 20; March 3, 2015.)