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D. Grasses should provide an immediate cover and sod is recommended. In <br /> less irrigated/non-irrigated areas, plant drought-tolerant plantsvai-ious <br /> grasses iii groupings roi ....... A temporary irrigation system should be <br /> ClI~t. ~ <br /> maintained for a minimum of one year_ (G) <br />E. Choose plant materials that provide variety and year-round color and <br /> screening. Select materials, which highlight each season (G). <br /> 1) Spring: Flowering plants <br /> 2) Summer: Shade <br /> 3) Fall: Leaf color <br /> 4) Winter: Branch form and texture. <br />F. Edging is required to separate grass areas from shrubs, ground cover and <br /> mulch. (S) <br />G. Utilize porous paving materials for paths, plazas, etc., such as patio bricks, <br /> inter-locking pavers, concrete stepping stones and/or sandstone. (G) <br />H. Plant annual and perennial flower beds in visible areas such as pedestrian <br /> plazas, building entries. (S) <br />I. Mulching: <br /> 1) All planting beds should be mulched with wood or decorative rock to <br /> stabilize soils, control erosion, and conserve water use. (S) <br /> 2) Use organic mulch materials that are best suited and adapted for the <br /> local area. (S) <br /> 3) Decorative rock may not constitute more than 50% of the total <br /> mulched area. (S) <br /> lx~uc~ lnuicn iS ul~cuutagcu iii tdiiu~capcu ~lanu~ w~tniu Fail. lng lute. <br /> (-C::r) In parking lot landscape islands, rock mulch may he used as an <br /> edger to protect the organic mulch, which should he the primary, mulch <br /> material. (S) <br />J. Use landscape or weed barrier fabric within all shrub beds and mulched <br /> areas to control weeds. (G) <br />K. All Landscape Plans should be prepared by a qualified Landscape <br /> Architect or landscape designer (G) <br /> <br />5.7 Planting Size Standards <br />Policy: <br />An immediate landscape impact is desired within all commercial developments, <br />and to facilitate this, minimum plant size standards are required. Larger sizes are <br />encouraged for shrubs and perennials. <br /> <br />Standards and Guidelines: <br /> A. Provide landscaping according to the following minimum sizes: (S) <br /> 1) Deciduous shade/canopy trees: 23.0" caliper* <br /> 2) Ornamental trees: 2.0" caliper*, however, 1.5" caliner ornamental trees <br /> may be sufficient in some cases_ <br /> 3) Evergreen trees: 6'-8' height (with a minimum of 25% 8' in height) <br /> <br />10 <br /> <br /> <br />