All developments that back or side onto a street and which have a six-foot screening wall constructed on the property line shall install within the street right-of-way contiguous with the property three shrubs and one tree for every thirty feet of such street frontage. All such trees and shrubs shall be provided with an automatic drip or bubbler irrigation system. Ground cover shall be one-quarter inch minus decomposed granite without plastic liners. A pre-emergent herbicide shall be applied to the ground prior to and after the placement of natural surface materials (decomposed granite, river run rock, etc.) in any landscaped area to prevent weed growth. The foregoing requirement shall apply in lieu of the street frontage landscape improvements required in Section 17.52.510 for those applicable street frontages.
(Ord. 1397.17.1 (part), 1991; Res. 1976 § 2 (part), 1991)