Involves spreading premium cool season grass seed over the lawn. Overseeding will help to fill in areas of turf damaged by summer stress, diseases or lawn damaging insects. It helps to thicken and increase the density of thin lawns. It also improves the lawn’s appearance and enhances the lawn’s ability to fight lawn damaging insects and diseases.
Since germination depends upon seed-to-soil contact, fall overseeding is often combined with lawn aeration, which is a process where the top 2 to 3 inches of the lawn has cores of soil pulled from it. Then as the soil cores break down they provide good seed-to-soil contact for the new turf grass. This will also help to loosen the hard compact soil allowing air, water, and nutrients to reach your lawn’s root zone. It can also help any thatch to decompose, preventing it from becoming a problem. Late September or early October is usually a good time to complete these treatments.