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e. The number of plant materials required in Subdivision 3 a-d may be reduced <br />by fifteen percent in each category in the I-1 districts. <br />f. In the event a site plan layout does not have adequate space to <br />accommodate plant quantities as required herein, such quantities per species <br />can be reduced, provided that total required height or caliper is maintained. <br />The Community Development Director and City Forester must approve all <br />changes. <br />Subd. 4. Minimum size of plantings and species requirements: <br />a. Only tree species from High Value Tree list or other tree species as approved <br />by the City Forester shall be used. <br />b. Overstory deciduous - 2 %2 inch caliper. <br />c. Coniferous - 6 feet in height as measured from grade. <br />d. Shrubs - 24 inch plant (potted). <br />e. Ornamental trees - 2 inch caliper. <br />Subd. 5. Method of installation: All deciduous and coniferous trees shall be ball and <br />burlap and staked and guyed per National Nurserymen's Standards. Alt shrubs <br />shall be potted. <br />Subd. 6. Use of Landscaping for Screening: <br />a. Where natural materials, such as trees or hedges are approved in lieu of the <br />required screening by means of walls or fences, density and species of <br />planting shall be such to achieve screening year round. <br />Subd. 7. Maintenance. <br />a. Property owners shall be responsible for the upkeep of all required plantings <br />and landscape materials. Upon written notice from the City, a property owner <br />shall be required to trim broken or damaged tree boughs, remove fallen trees <br />or storm damaged trees and remove diseased trees as identified by the City <br />Forester.2 Uprooted, damaged or diseased tree stumps shall be removed or <br />ground down below grade. <br />z Refer to Chapter 605, Tree Disease Control. <br />