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or pole-pruning equipment may be trimmed by the Contractor. Branches overhanging traffic lanes shall be kept side trimmed to face of curb line and to a height of twelve (12) feet. Branches and vines overhanging pedestrian routes shall be kept trimmed to a height of eight (8-12ft) feet above walkway level. All trees shall be pruned by qualified personnel using horticulturally-sound methods and approved techniques. Trees shall be pruned to develop a structurally sound shape and a healthy, natural appearance. No excessive pruning or stubbing back will be allowed. Sucker growth originating at the crown or below shall be removed at a height less than 12-18 inches. Perennials The City has made a concerted effort to change areas previously planted with annuals to perennials and adhering to Bay Friendly Guidelines for maintenance. This includes leaving plants in their natural shape, trimming back one to two times per year, adding three inches of mulch to bare areas, and watering by bubblers or by hand. Contractor shall be required to replace dead or diseased perennials with like species in consultation with the City. Perennials shall be fertilized twice per year in October and April with a complete fertilizer formulated to keep perennials in a vigorous and health condition. Shrubs Shrubs shall be pruned as necessary to encourage healthy, natural growth patterns for each specific variety. Pruning shall include thinning, shaping, and removing dead or diseased branches. For flowering shrubs, including roses, dead blossoms still attached shall be removed. Shrubs which may restrict visibility, such as those adjacent to left hand turn lanes or those within 1 00 feet of any intersection shall be kept within the height range of 12-24 inches as measured from the street level. Rhododendron shall be fertilized as needed by the appropriate fertilizer. Different types of shrubs should not be allowed to grow together and suckers/volunteer intruders shall not be allowed to grow within the established shrubs. Existing ivy growth in shrubs shall be removed and shall be kept trimmed back from shrubs/trees. All shrubs shall be pruned back to clear all roadways, curbs, gutters, buildings, and sidewalks. Shrubs shall not block signs, utilities, utility meters or any other facilities located within the work areas. Shrubs shall not block access to controllers or electric valves and shall be pruned so as to minimize blockage of irrigation spray head patterns. Shrubs shall be fertilized a minimum of twice per year, once in October and once in ApriL with a complete fertilizer. Shrub fertilizer shall be a formulation to keep shrubs in a vigorous and healthy condition. RFP 55025 CITYWIDE LANDSCAPE MAINTENANCE Page 64 of 70