About Lawn Care:
Success or failure of a home lawn is closely tied into how well the soil and site was prepared prior to lawn establishment. Taking shortcuts in soil and site preparation often leads to assorted lawn problems later. Take the time and effort to do a thorough job before seeding or sodding.
Eliminating weed problems existing on the site is an important first step. Before seeding or sodding, it's very important to thoroughly work the soil (by rotary tiller) and amend poor soils, such as heavy clay, by adding organic matter through sources as compost and quality topsoil. Incorporate these materials into the existing soil, rather than layering them on the surface. Six inches or more of well prepared soil is suggested.
Starter fertilizers may also be mixed into the soil surface prior to lawn establishment. Starter fertilizers typically have balanced ratios of nitrogen, phosphorus, and potassium (N, P, K), such as 10-10-10 or 12-12-12.
When preparing the soil, it's important to establish a favorable final grade. Rough grading should include removal of any rock or other debris. Avoid burying construction debris, and eliminate any depressions or raised areas.
Timing is critical to assure success when seeding lawns. Mid August to early September is the ideal time for seeding lawns. April would be a second choice. Seeding in late spring through mid-summer often leads to problems. Newly seeded grasses must receive adequate moisture to assure germination and early seedling survival. Putting down a light straw mulch can help prevent rapid drying and helps keep the soil in place until grasses are established. Use about 1 bale per 1,000 square feet.
*Information obtained from University of Illinois Extension