Tall fescue is a low-maintenance deep rooted grass that does well in the northern half of the United States. Reseeding, which is sometimes referred to as overseeding, is done to maintain the health and thickness of a tall fescue lawn when patches or thinning occur. Fall is considered the best time to do reseeding, but very early spring works well too. Reseed during one of those seasons when the schedule works best for you.
Mow your lawn, with the mower's height adjustment at the lowest level.
Aerate your soil with a power aerator, which you can rent. Travel first in a north-south direction, and then in an east-west direction to ensure that you aerate the entire lawn.
Sow the fescue seeds with a rotary drop seed broadcaster. Use the setting on the broadcaster to achieve a rate of 6 pounds per 1,000 square feet. Once again, seed north-south and then east-west for complete coverage.
Aerate again or rake the seeds into the grass for positive contact with the soil.
Cover your seeded area with straw, calculating coverage at 1 bale per 1,000 square feet.
Water frequently. This will keep the seeds from drying out, and grass will start to grow in 8 and 14 days.
When the seedlings reach about 1/2-inch tall, fertilize them with a slow-release nitrogen compound fertilizer. Before mowing, allow the seedling to grow about 1/3 higher than normal.