what temperature is needed for grass seed to grow
Cool season grass requires a minimum range of 45 - 55 degrees. Warm season grass requires a minimum 55- 65 degrees. Note that soil temperatures are usually cooler than air temperature. In addition to the density of the ground that is slower to warm up, moisture evaporating from the surface has a cooling effect. rate of 90-95% is preferred, but some grass varieties will typically be found in the 80% range. The higher, the better. An 85% germination rate means that if you plant 100 seeds, 85 of them should sprout and grow.