How Do I Thicken My Shady Lawn?

Prune the trees on a yearly basis. Grass doesn't grow well directly under a tree's canopy because of the tree's roots. Appropriate pruning of the branches just beyond the roots allows more sunlight to reach the ground.

Reseed the lawn with a species of grass that can tolerate shade. Certain grasses such as fescue and Kentucky bluegrass don't require as much full sun as other species.

Overseed shady areas. Water deeply and rake up leaves often to allow as much air and sunlight as possible to reach the ground. This encourages germination of the grass seed.

Water sparse areas of the lawn deeply but not as frequently as areas that receive full sun. Without the heat of the sun, water takes longer to evaporate, so the ground may become oversaturated. Overwatering can expose weakened grass to disease. Additionally, too much water might wash away grass seeds, preventing them from taking root.

Fertilize shady areas of the lawn less often than sunny areas. The soil may become over-fertilized if there is not enough vegetation to absorb the nutrients.

Weed as often as necessary. Many types of weeds thrive even under the most adverse conditions, and they can crowd out and overtake the grass.

Have the soil tested. Too much clay in the soil or excessive pH may be affecting grass growth. Make adjustments to the soil as recommended by the grass supplier.

Mow shady areas to a height of at least 2 to 3 inches. Cutting grass too low discourages photosynthesis, a necessary component for vegetation to grow successfully.

Consider installing pavers in areas where the grass is sparse. Grass cannot grow well if exposed to excessive foot traffic.