Overseeding increases the density of your lawn by planting more seed on top of an existing lawn. If you have bare areas of your lawn or thin grass where you can see the soil, overseeding might be a good solution. Mow Town recommends overseeding in spring or in fall. We overseed with a mixture of Kentucky Blue Grass, Perennial Rye Grass, and Creeping Red Fescue. Each of these grass species can fill different areas. For example, rye grass and fescue do better in shaded areas where as Kentucky is more of an all purpose grass seed. After overseeding, consistent daily watering is important to ensure the seed takes.