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<br />c. Tree spacing must include trees at the boulevard at minimum fifty (50) foot intervals. <br /> <br />d. The calculation for the number of foundation plantings is based upon one (1) planting for <br />each lineal foot of building perimeter and parking lot perimeter. Plantings may be grouped <br />rather than dispersed at ten (10) foot intervals. <br /> <br />e. The required number of trees is based upon a minimum of eight (8) trees or one (1) tree per <br />three thousand (3,000) square feet (SF) of site area, whichever is greater. Tree spacing <br />must include trees at the boulevard at a minimum of fifty (50) foot intervals. <br /> <br />Subd. 4. <br /> <br />Subd.5. <br /> <br />Subd. 6. <br /> <br />Subd. 7. <br /> <br />Subd. 8. <br /> <br />Subd. 9. <br /> <br />Subd. 10. <br /> <br />Overstory Trees. <br />(a.) Deciduous Trees. Two and one half(2 Yz) inch ealipef diameter <br />planting size, balled and burlapped. <br /> <br />(b.) Coniferous Trees. Six (6) feet in height planting size, balled and <br />burlapped. <br /> <br />Foundation Plantings. Coniferous and deciduous shrubs shall be planted at a <br />minimum of one-third (1/3) the mature spread and height of typical growth <br />habits. <br /> <br />Boulevard Trees. All boulevard trees shall be hardwood shade trees or <br />flowering trees. <br /> <br />Overstory Mix. When multiple quantities of overstory trees are required, at least <br />seventy-five percent (75%) of the trees required shall be deciduous. <br /> <br />Hardiness. All landscape materials proposed shall be consistent with Minnesota <br />Hardiness Zones, whether indigenous or foreign. Plant species must all be <br />tolerant to snow storage, exposure to salt and sun scald in parking areas. <br /> <br />Diversification. In any development in which at least eight (8) overstory trees or <br />foundation plantings are required, at least three (3) varieties of boulevard trees <br />are required on each side of the block. <br />Warranty. All required landscape materials shall be warranted for growth for a <br />minimum oftwo (2) years after planting. <br /> <br />422.16 Screening. Screening may be accomplished with a wall, fence, berm or other <br />landscape feature, or plantings which will provide opacity of 80% within <br />three years of planting. Planting type and screen design are subject to Planning <br />and Zoning Commission review and City Council approval. Screening is <br />required on B-1 and I district property which abuts any property in a residential <br />district. The Council may require screening on high density residential <br />property which abuts R-l, R-2 and R-2A. <br /> <br />422.17 Performance Standards. Every use permitted by this Ordinance shaH be so established <br /> <br />13 <br />