Plant carpet grass when soil temperature reaches 65 degrees and after all danger of frost has passed.
Test the pH of the soil with a soil testing kit or contact a university extension service to test the soil for a small fee.
Apply 50 pounds of line per 1,000 square feet if the soil pH level is below 5.0 for the best results.
Till the soil to a depth of four inches, then add four to six inches of sphagnum peat or topsoil if needed. Till the soil well to mix the amendments and existing soil.
Remove all debris from the soil such as weeds, twigs, stones or construction debris. Rake the surface of the soil until it's level.
Apply two pounds of fertilizer per 1,000 square feet of lawn. Water soil until moist with garden hose and allow the soil to settle.
Use a mechanical seed spreader to broadcast two pounds of carpet grass seed per 1,000 square feet of lawn. Cover the carpet grass seed by lightly raking the soil just to cover the seed.
Plant 15 to 20 pounds of carpet grass seed per acre with a grass drill for planting large areas.
Water soil after planting until very moist, but not soggy. Keep the soil moist by watering every day for about two weeks after planting. About 8 to 10 weeks after planting carpet grass, water as needed.
Apply fertilizer once a month after lawn is covered with carpet grass and well established.