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5 <br />o Three forb species that bloom in each portion of the growing season: early, mid, and <br />late. <br />o Flower species that are identified as preferred species by the rusty patched bumblebee <br />and other pollinators. <br />5.2 Long Term Objectives (5+ Years) <br />•Maintain desirable, seeded perennial native vegetation to reduce invasion of noxious weeds, <br />woody species, and other undesirable plants. <br />•Monitor annually to assess conditions and identify problems to be addressed through <br />management activities. <br />6.0 Vegetation Establishment and Management <br />The following vegetation establishment guidelines are based on expected conditions prior to and during <br />construction. <br />Table 1: Establishment Timeline <br />Activity Summary Timeline <br />Preparatory herbicide <br />treatments <br />(unnecessary if <br />seeding soon after <br />crops are harvested <br />from weed-free soil) <br />Application of a non-specific herbicide <br />to all live vegetation in the seeding area <br />if undesirable vegetation is present <br />At minimum 14-21 days prior to <br />seeding <br />Install BMPs Placement of erosion control measures Immediately prior to grading <br />and seedbed preparation <br />Grading and seedbed <br />preparation <br />Conduct Site grading, manage topsoil <br />appropriately, de-compact soil if <br />needed, and prepare a smooth, evenly <br />textured soil surface <br />Immediately following BMP <br />installation <br />Seeding Install seed mixes with specialty <br />equipment designed for native species: <br />no-till drill seeder or appropriate <br />broadcast seeder <br />Within 14 days of completion of <br />seedbed preparation; seeding is <br />best conducted whenever soils <br />are not frozen and not in the <br />middle of summer (avoid <br />seeding Jun 15 – Sep 15) <br />6.1 Site Preparation <br />BMPs will be installed before and during grading activities, including placement of erosion control <br />measures such as silt fences, biologs, and sediment catch basins to prevent soil loss. Tree clearing, <br />grubbing, and stump removal will be conducted only where necessary. Grading will be completed in <br />accordance with the Site plans and in a manner that minimizes overall soil disturbance and reduces the <br />movement of soil as much as possible. <br />Topsoil will be segregated during grading and redistributed across graded areas. Where necessary, soils <br />compacted by construction activities beyond the range of 250 PSI as determined by a soil compaction