Laserfiche WebLink
Temporary and Permanent Seeding (TSTS) EC-2 <br /> Seeding dates for the highest success probability of perennial species along the Front Range are generally <br /> in the spring from April through early May and in the fall after the first of September until the ground <br /> freezes. If the area is irrigated, seeding may occur in summer months, as well. See Table TS/PS-3 for <br /> appropriate seeding dates. <br /> Table TS/PS-1. Minimum Drill Seeding Rates for Various Temporary Annual Grasses <br /> Pounds of Planting <br /> Species' Growth Pure Live Seed Depth <br /> (Common name) Season" (PLS)/acre (inches) <br /> 1. Oats Cool 35 -50 1 -2 <br /> 2. Spring wheat Cool 25 -35 1 -2 <br /> 3. Spring barley Cool 25 -35 1 -2 <br /> 4. Annual ryegrass Cool 10 - 15 '/2 <br /> 5. Millet Warm 3 - 15 '/2_3 4 <br /> 6. Sudangrass Warm 5-10 '/2-% <br /> 7. Sorghum Warm 5-10 '/2-3/4 <br /> 8. Winter wheat Cool 20-35 1 -2 <br /> 9. Winter barley Cool 20-35 1 -2 <br /> 10. Winter rye Cool 20-35 1 -2 <br /> 11. Triticale Cool 25-40 1 -2 <br /> a Successful seeding of annual grass resulting in adequate plant growth will <br /> usually produce enough dead-plant residue to provide protection from <br /> wind and water erosion for an additional year. This assumes that the cover <br /> is not disturbed or mowed closer than 8 inches. <br /> Hydraulic seeding may be substituted for drilling only where slopes are <br /> steeper than 3:1 or where access limitations exist. When hydraulic <br /> seeding is used, hydraulic mulching should be applied as a separate <br /> operation,when practical,to prevent the seeds from being encapsulated in <br /> the mulch. <br /> b See Table TS/PS-3 for seeding dates. Irrigation, if consistently applied, <br /> may extend the use of cool season species during the summer months. <br /> Seeding rates should be doubled if seed is broadcast,or increased by 50 <br /> percent if done using a Brillion Drill or by hydraulic seeding. <br /> June 2012 Urban Drainage and Flood Control District TS/PS-3 <br /> Urban Storm Drainage Criteria Manual Volume 3 <br />