Dethatching is essential for a healthy lawn. It removes excessive thatch to help the grass get light, moisture, and nutrients. However, get the timing wrong and it can place the lawn under undue stress, so when is it too late to dethatch your lawn?
The usual timings for dethatching a lawn are in spring or fall for cool-season grasses, and late spring to early summer for warm-season grasses. These windows give the lawn time to recover, rather than placing it under added stress during hot summers and cold winters.
