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III. LANDSCAPE/SITE TREATMENT <br />Landscape Design <br />Fig. 29: Landscaping shown at 5 years after <br />planting. <br />Fig. 30: Live groundcover is planted to achieve <br />90% coverage within 3 years from installation. <br />Tune of plaruing <br />90% of coverage after 3 years <br />1. Plants can be used to curtail erosion, to soften the <br />built environment, define or emphasize open space, <br />give privacy, block wind and lessep the effects of solar <br />radiation. <br />2. Although the landscape plan should reflect plants at <br />maturity, landscaping should be considered as a design <br />element harmonizing site plans and building design <br />only to the extent of its effect in five years. This could <br />mean using significantly larger initial plant stock for <br />those project designs which rely heavily upon <br />landscaping to provide relief for building and site <br />design or screen the project. <br />4. Transition areas adjacent to buildings and parking <br />lots should be landscaped with a combination of trees, <br />shrubs, and ground cover. This provides a tiered visual <br />transition between the open and built environments, and <br />breaks up wall masses. <br />5. The design orientation for landscaped areas is <br />largely discussed in Section 1: Site Plan guidelines. <br />This section focuses on the technical standards to be <br />recognized in designing such landscape areas. <br />6. In general, landscape materials should be selected <br />, and sited to produce a hardy and drought -resistant <br />landscape area consistent with project design. Selection <br />should include consideration of soil type and depth, <br />- spacing, exposure to sun and wind, slope and contours <br />of the site, building walls and overhangs, and <br />compatibility of new plant material with existing <br />vegetation to be preserved on the site. <br />All plant materials should be installed to current <br />nursery industry standards which would include, but <br />not be limited to the following or equivalent: <br />• Landscape plant material should be properly guyed <br />and staked to current industry standards. <br />• Deciduous trees should be fully branched. <br />• Evergreen trees should be a minimum of 8 feet in <br />height at the time of planting. <br />• All plant rows should be staggered for effective <br />covering. <br />• Ground cover should be supplied at the time of <br />planting in minimum of 4 -inch containers as <br />appropriate to achieve 90% coverage in 3 years, or <br />as sod. <br />• Planting of trees in compacted soils should be <br />prohibited unless minimum 12 inch gravel drain <br />20 <br />