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or pole-pruning equipment may be trimmed by the Contractor. Branches <br /> overhanging traffic lanes shall be kept side trimmed to face of curb line and to a <br /> height of twelve (12) feet. Branches and vines overhanging pedestrian routes shall <br /> be kept trimmed to a height of eight (8-12ft) feet above walkway level. <br /> All trees shall be pruned by qualified personnel using horticulturally-sound methods <br /> and approved techniques. Trees shall be pruned to develop a structurally sound <br /> shape and a healthy, natural appearance. No excessive pruning or stubbing back <br /> will be allowed. Sucker growth originating at the crown or below shall be removed <br /> at a height less than 12-18 inches. <br /> Perennials <br /> The City has made a concerted effort to change areas previously planted with <br /> annuals to perennials and adhering to Bay Friendly Guidelines for maintenance. <br /> This includes leaving plants in their natural shape, trimming back one to two times <br /> per year, adding three inches of mulch to bare areas, and watering by bubblers or <br /> by hand. Contractor shall be required to replace dead or diseased perennials with <br /> like species in consultation with the City. Perennials shall be fertilized twice per year <br /> in October and April with a complete fertilizer formulated to keep perennials in a <br /> vigorous and health condition. <br /> Shrubs <br /> Shrubs shall be pruned as necessary to encourage healthy, natural growth <br /> patterns for each specific variety. Pruning shall include thinning, shaping, and <br /> removing dead or diseased branches. For flowering shrubs, including roses, dead <br /> blossoms still attached shall be removed. Shrubs which may restrict visibility, such as <br /> those adjacent to left hand turn lanes or those within 100 feet of any intersection <br /> shall be kept within the height range of 12-24 inches as measured from the street <br /> level. Rhododendron shall be fertilized as needed by the appropriate fertilizer. <br /> Different types of shrubs should not be allowed to grow together and <br /> suckers/volunteer intruders shall not be allowed to grow within the established <br /> shrubs. Existing ivy growth in shrubs shall be removed and shall be kept trimmed <br /> back from shrubs/trees. <br /> All shrubs shall be pruned back to clear all roadways, curbs, gutters, buildings, and <br /> sidewalks. Shrubs shall not block signs, utilities, utility meters or any other facilities <br /> located within the work areas. Shrubs shall not block access to controllers or <br /> electric valves and shall be pruned so as to minimize blockage of irrigation spray <br /> head patterns. <br /> Shrubs shall be fertilized a minimum of twice per year, once in October and once <br /> in April, with a complete fertilizer. Shrub fertilizer shall be a formulation to keep <br /> shrubs in a vigorous and healthy condition. <br /> RFP 55025 CITYWIDE LANDSCAPE MAINTENANCE Page 64 of 70 <br />