Question: There are several bare spots in our lawn. Is it too early to sow fescue grass seed?
If the bare spots are just that – bare, ragged patches in an established lawn of cool-season grass such as fescue, and not an entire lawn — then March is a good time to fill in and overseed by sowing new grass seed. Here are the steps to take, provided by Judy Lowe, author of Month by Month Gardening in Tennessee & Kentucky:To overseed, mow the grass at the lowest mower setting and rake the clippings, then mow and rake again to expose as much of the soil as possible. Use a hard metal rake to rough up the soil. Even with much of the soil exposed, the seed won’t all come into contact with the soil, so sow one-and-a- half or two times the amount of seed recommended for a new lawn. Rake lightly over the area, and if possible, sprinkle a ¼-inch layer of topsoil or compost on top. Water the overseeded lawn every day to keep the soil moist until the seeds germinate.
To patch a bare or ragged patch of lawn, first remove grass and weeds from the area and square off the edges. Dig the soil six inches deep and remove any rocks, roots and debris. Mix organic matter into the soil, rake the area, and then water. Sow grass seed at the rate recommended on the bag, then smooth the soil with the back of a rake to make sure the seed comes into contact with the soil. Cover the area with a light layer of wheat straw and water it often to keep the soil moist while the seeds germinate.
These steps can get your lawn through the summer in fairly good shape if it receives adequate moisture throughout the season. For complete renovation of a fescue lawn, which is easier to establish in cool weather, wait until fall.
If your lawn is a warm-season grass such as zoysia or Bermuda, wait until the soil warms up to do any planting.