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10 <br /> <br />4. Final slopes greater than 3:1 will not be permitted without special treatment such as terracing, <br />retaining walls, erosion control blankets, or special ground covers. <br />5. All plant materials, except trees planted per the tree replacement schedule, shall meet the following <br />minimum size standards in Table 6-1. Trees planted per the tree replacement schedule shall meet the <br />minimum requirements outlined in Lake Elmo Code Section 105.12.470(c)(8)d. <br /> <br />Table 6-1: Minimum Size Standards for Landscape Materials <br />Plant Type Minimum Size at Planting ** <br />Trees: <br />Evergreen 6 feet in height <br />Deciduous--shade 2.5 inches caliper, measured six inches from <br />base <br />Deciduous--ornamental 2 inches caliper, measured six inches from base <br />Shrubs: <br />Evergreen # five container* <br />Deciduous # five container* <br />Shrubs used for screening (evergreen or <br />deciduous) # five container* <br />* Approximately five gallons. <br />** See American Standards for Nursery Stock, ANSI 260.1-2004 for exact specifications. <br />* This table and its requirements do not apply to the tree replacement schedule. <br />6. As an alternative to the minimum standards for landscape materials, a landscape plan prepared by a <br />qualified professional certifying that said plan will meet the intent of this section may be submitted. <br />7. As a general rule, tTrees should must be planted a minimum of ten feet away from all utilities <br />including water and sewer stubs unless approved by the cCity. No plantings may be placed in or <br />within 5 feet of a drainage and utility easement, unless approved by the Public Works Director. <br />c) Landscaping of setback areas. All required setbacks not occupied by buildings, parking, paths or plazas shall <br />be landscaped with turf grass, native grass, trees, shrubs, vines, perennial flowering plants, and surrounding <br />pervious ground cover. <br />1. A minimum of one tree per lot or one tree for every 50 feet of street footage, lake shore or stream <br />frontage, or fraction thereof shall be planted at the time of development. The total tree requirement <br />will be whichever quantity is greater. <br />a. Trees adjacent to streets shall be planted within the front yard and may be arranged in a <br />cluster or placed at regular intervals to best complement existing landscape design patterns <br />in the area. <br />b. Salt tolerance, species soil compatibility, and root structure should be considered when <br />selecting tree species adjacent to streets, sidewalks and parking areas. <br />c. Where property abuts a lake or stream, trees shall be planted at intervals of no more than 50 <br />feet along the shoreline, except where natural vegetation is sufficient to meet this <br />requirement. <br />2. In addition to the requirements of subsection (c)(1) of this section, a minimum of five trees shall be <br />planted for every one acre of land that is disturbed by development activity. Such trees may be used <br />for parking lot landscaping or screening as specified in subsections (d) and (e) of this section. <br />d) Interior parking lot landscaping. The purpose of interior parking lot landscaping is to minimize the <br />expansive appearance of parking lots and provide shaded parking areas. Landscaping shall consist of planting <br />islands, medians and borders, comprising the required planting area specified under subsection (d)(1) of this <br />section. <br />1. At least five percent of the interior area of parking lots with more than 30 spaces shall be devoted to <br />landscape planting areas. Areas may consist of islands or corner planting beds.