When you are starting a new lawn from scratch, your grass will need specific care. Grass comes as cool-season or warm-season grass, depending on the climate you live in. Purchase quality seed even though the outdated seed may seem like a great deal, as not all of the outdated seed may sprout.
Remove all debris from the soil, such as weeds, stones and sticks, and make sure the ground is level and all large clumps of dirt are broken up. Tilling the soil will create room for the roots to grow through the soil more quickly. A tiller can be rented from your local hardware store.
Spread the seed by hand, or use a lawn spreader or seeder. There should be approximately 16 seeds per square inch, or the grass may be sparse.
Cover the seeds with 1/4 inch of soil by raking the soil over the seeds.
Fertilize after seeding, and water the ground. Water lightly often, twice a day, or more frequently in hot weather, to keep the seeds moist until they have germinated. You can then water less often and concentrate on deeper waterings. Allow the water to penetrate just past the roots so new roots can grow deeper.
Wait at least six weeks before mowing your new grass, and avoid placing herbicides on your new grass until at least the third mowing.