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274 <br /> Article 6: Development Standards <br /> Section 6.8:Landscaping,Buffers&Tree Protection <br /> TOTAL TREES PLANTED MIN SPECIES REQUIRED MAX PERCENTAGE OF ONE <br /> ON SITE SPECIES <br /> 11 to 20 Trees 3 40% <br /> 21 to 40 Trees 4 35% <br /> 41 to 80 Trees 6 30% <br /> 81 to 150 Trees 8 25% <br /> Over150 Trees 10 20% <br /> (3) Deciduous and Evergreen Shrubs <br /> (a) All shrubs shall be cold hardy and heat tolerant. <br /> (b) Upright shrubs shall be a minimum of 15 inches in height at the time of <br /> planting. <br /> (c) Shrubs shall not be planted closer than three feet on center.Shrubs shall <br /> not be planted closer than three feet to planted trees,nor within six feet <br /> of existing protected trees;however,no more than 25%of the root <br /> protection zone of an existing tree may be disturbed with new plantings. <br /> (d) When planted as a hedge,the maximum spacing for 24-inch high <br /> deciduous shrubs shall be 36 inches on center.Spacing for other size <br /> shrubs shall be determined by the Planning Director or designee based <br /> on the proposed species. <br /> (4) Preferred Species <br /> The Planning Director shall maintain a list of plants by type and their preferred <br /> location or use on sites developed under this Section.The list shall include <br /> drought tolerant and native species <br /> (5) Prohibited Plants <br /> The Planning Director shall maintain a list of plants that are not permitted for any <br /> use due to their invasive tendencies.Such species shall not be planted as <br /> landscaping for any purpose. <br /> (D) Installation <br /> (1) The International Society of Arboriculture145(ISA)maintains standards for tree <br /> plantings. All installations shall adhere to the standards published by the ISA. <br /> The Planning Director will have available the planting details as a booklet. <br /> (E) Maintenance <br /> (1) All plantings must be maintained in a healthy state. Should any vegetation that <br /> was required to meet the standards of this section die within two years of <br /> planting,the plants must be replaced with the same or comparable species. <br /> (2) The Planning Director may conduct inspections to monitor the health and status <br /> of the required landscaping. <br /> 6.8.6 Land Use Buffers <br /> (A) Purpose <br /> Land use buffers are intended to screen and buffer lower intensity/density uses from <br /> incompatible higher intensity/density land uses. Buffers reduce adverse visual effects,as <br /> well as noise,dust,and odor. <br /> (B) Applicability <br /> ...Correct misspelling. <br /> Orange County,North Carolina—Unified Development Ordinance Page 6-41 <br />