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Page 3 <br />10' to < 15' Two (2) <br />15' or more Three (3) <br /> <br />Subsection 30-934(d)(3) pertaining to approved tree species shall apply to the types of <br />trees given credit. <br />3. For native grasses and plant communities . The total number of required trees may be <br />offset by the provision of native grasses and wildflowers. Planting or preservation of <br />native planting communities will receive credit for one tree per 500 square feet of <br />native grass area. Credits may not exceed 50 percent of the total requirements. A <br />native grass and plant community maintenance plan shall be submitted to the city <br />every year by March 1. <br />f. Reserved. <br />g. Maintenance. The property owner of the lot upon which required landscaping or screening <br />is located shall maintain all materials in a sightly and healthy growing condition. Plant <br />material removed due to damage, disease, or death shall be replaced. <br />(c) Permitted single-family uses in all districts. Landscaping requirements for permitted single-family <br />uses in all districts are as follows: <br />(1) Applicability of requirements. All permitted single-family properties shall comply with the <br />requirements of this subdivision when new development or expansions are to occur on these <br />properties. <br />(2) Minimum requirements. All open areas of a lot which are not used and improved shall be <br />landscaped with a combination of overstory trees, ornamental trees, coniferous trees, shrubs, <br />flowers, and turf or permitted ground cover materials. The minimum number of trees in the front <br />yard is two. <br />a. Location of required front yard trees. <br />1. One tree must be located in the boulevard area and shall be an overstory type tree. <br />2. A second tree shall be located in the front yard area. Overstory, evergreen, and <br />ornamental tree species are permitted. <br />(d) Species. <br />(1) All required trees shall be of species which are classified as overstory, ornamental, and <br />coniferous trees by the American Nurseryman's Association. <br />(2) Not more than 50 percent of the required number of overstory or ornamental trees shall be <br />composed of one species. <br />(3) All required trees shall be selected from the University of Minnesota Extension Service's list of <br />recommended trees for Southeast Minnesota, or as approved by the city's planning department. <br />(e) Minimum size and root condition of trees. Minimum size and root condition of required trees shall be <br />as follows: <br />(1) Overstory trees shall be two inches in diameter as measured six inches above the ground, and <br />trees must be balled and burlapped. <br />(2) Ornamental trees shall be one and one-half inches in diameter as measured six inches above <br />the ground, and trees must be balled and burlapped.