Buying Seed Nwsg seed costs more than cool-season grass or legume seed because it yields less seed per acre and costs more to harvest, clean, and warehouse.
Prices also fluctuate with supply and demand.
Stands will thicken from seed and vegetative spread if managed correctly. PLS is the seed that grows minus the stems, leaves, and dead seed. Percent purity, germination and firm seed, and total percent PLS are usually listed on the seed tags or the invoice. Check your calculation by dividing the pounds of pure live seed purchased, as shown on the invoice, by the pounds of bulk seed shipped. This is often the easier method of determining the PLS of a mixture than calculating the PLS for each species.