Even in well-maintained lawns, spot or general seeding is sometimes needed. Lawns can thin because of weather, or as a result of damage caused by insects or diseases. Some badly damaged lawns need to be completely rebuilt before regular maintenance can do much good.
There are three general categories of seeding: spot seeding, overseeding, and renovation. The type that’s right for your lawn depends on the condition of your turf. Whatever type of seeding is done, there are three important rules to follow:
It’s true that seeding can be successful any time of year, but spring and summer seeding require a lot more care and water, and weeds and crabgrass create a lot more competition. Late summer or fall seeding is ideal. Early fall is preferred because seeds germinate faster in the warm soil and continue to establish themselves through the cooler weather of fall and winter. There’s also more natural water in the fall so less sprinkling is needed.
Whenever you choose to seed, remember to keep the seed moist until you have good germination. Sprinkle lightly several times a day during hot weather until the grass is 1” tall. Also, avoid any type of weed control until the new grass has been mowed 3 or 4 times.