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City of Big Lake Chapter 10 Zoning Section 1066—Wetlands Overlay District 3. The annual nurse or cover crop shall be applied at a rate of twenty (20) pounds per acre. 4. Native shrubs may be substituted for forbs. Such shrubs may be bare root seedlings and shall be planted at a rate of sixty (60) plants per acre. Shrubs shall be distributed so as to provide a natural appearance and shall not be planted in rows. 5. Any ground cover or shrub plantings installed in buffer areas are independent of landscaping requirements set forth elsewhere in the City Code and City policy. 6. Native prairie grasses and forbs shall be planted by a qualified contractor using a drill designed for native prairie grass seedlings, such as a Truax or Nesbitt Native Grass Drill or a John Deere 1550 Power-Till Seeder. 7. No fertilizer shall be used in establishing new buffer zones, except on highly disturbed sites where deemed necessary to establish acceptable buffer vegetation and then limited to amounts indicated by an accredited soil testing laboratory. 8. All seeded areas shall be mulched immediately with a mulch material approved by the City Engineer. Mulch shall be anchored with a disk or tackifier. 9. Buffer zones (both natural and created) shall be protected by silt fence during construction and the fence shall remain in place until the area crop is established. 10. Applicants may obtain from the City a set of standard seeding and planting specifications for buffer zones which meet all the City requirements. Subd. 4. During the first two (2) years, the developer shall replant any buffer vegetation that does not survive. After two (2) years, if the condition of the buffer area changes through natural processes not caused by the property owner, the owner shall not be required to re-establish the buffer area to meet the standards established in this Section. 1066 - 8