YAVAPAI COUNTY PLANNING AND ZONING ORDINANCE Page 100 4. Retention of existing native vegetation and natural features is encouraged. Special consideration may be given to developments which retain existing trees, vegetation, and natural features of the site where possible and which are replaced and enhanced when necessary. 5. All landscape design shall take into consideration the need for Defensible Space. 6. Invasive Plants and Noxious Weeds as defined in ARS 3-201 and under the Arizona Department of Agriculture R3-4-245 are prohibited. B. LANDSCAPE PLAN REQUIREMENTS 1. Design a. Plants should be grouped in strategic areas and not spread thinly around the site. b. Trees must be planted to allow for maximum growth in height and shape without the need for pruning in excess of that required to maintain the health of the plant. c. New vegetation shall be selected, planted, and maintained so that at maturity it will not interfere with utility lines, vehicular parking, pedestrian circulation, traffic sight visibility at driveways and street intersections, and will not cause damage and upheaval of sidewalks and pavement. d. A clear sight triangle shall be maintained at all street intersections and driveway entrances. Such clear sight triangle shall be determined by measuring 25’ along each property line at street intersections, and along the property line and the driveway for driveway entrances. Landscape materials in this area shall have a clear trunk height of seven (7) feet from grade level; mature shrubs, groundcover, or other materials shall not exceed two (2) feet in height from grade level. e. The preservation of healthy existing trees and shrubs shall be provided wherever possible. These trees and shrubs must be shown on the Landscape Plan and labeled as “existing”. They must also be listed on the plant list with their current size shown. 2. If the Development Services Director determines that the proposed Landscaping does not comply with this Ordinance, the Plan will not be approved. C. PLANTING SCHEDULE 1. Plant Material Minimum Size: Trees • Deciduous- 1 ¼ inch caliper • Evergreen- 15 gallon Understory Planting: • Shrubs- 5 gallon • Accent- 5 gallon • Groundcover- 1 gallon 2. Landscaped Areas • One (1) tree and five (5) understory plants (equal mix of shrubs, accents and groundcover) per 500 sq. ft may be clustered or grouped for aesthetics. Minimum