Centipede grass is a low-maintenance, hardy, warm-season grass. It can grow happily in any type of soil, even if the soil is nutritionally poor. Therefore, it is an ideal variety of grass with which to over-sow existing lawns. It grows thickly, requires little mowing and will quickly fill in any thin places in your lawn. While centipede grass can be sown in a lawn in spring, the best time to do it is between mid-August and mid-September when weed competition is not a problem.
Use a power rake (also known as a vertical mower) to clear the lawn of thatch and to loosen the soil to a depth of 1/4 inch.
Use a fertilizer spreader, or hand broadcast the centipede grass at a rate of 1.5 pounds per 1000 square feet of lawn.
Rake the lawn again to settle the seed into the soil.
Keep the soil moist until the seedlings take root and reach two inches in height.