A special landscaping performance bond, in an amount established by the City Engineer and in a form approved by the City Attorney, shall be posted by the developer to guarantee that the planting will become permanently established. This bond will become effective upon certification as required in Section 17.06.137 and will be held by the City for a minimum one-year period after the landscaping has been certified. The purpose of this bond is to insure adequate ground coverage and permanent establishment of plantings during the maturation period after planting. (Ord. 3411 § 2 (part); April 1, 1975.)