Establishing a New Lawn This freshly sown grass was mulched with straw. After preparing the location and selecting the appropriate grasses, it is time to plant the lawn. Numerous aspects must be considered when deciding whether to seed or sod. Assuming good planting, the ultimate product of a healthy grass should be same.
Timing is essential for successful lawn sowing. Northern Illinois lawns should be seeded between mid-August and early September. April would be the second-best option. As the summer heat slows or halts the growth of our cool-season grasses, sowing in late spring through midsummer sometimes results in issues.
Infrequently performed by professional groundskeepers, dormant seeding is complex and hence not recommended for homeowners. The rates of sowing are listed below. Excessive rates may result in weak, spindly seedlings and the possible development of disease. 
When should I sod my Chicago lawn?
Planting Grass Seed in Illinois at What Time? Learn when grass seed should be planted in Illinois and which Jonathan Green products to select. A Black Beauty TM lawn will transform your perception of what a beautiful lawn should look like. The optimal time to overseed or seed your Illinois lawn is late summer to early fall (from mid-August to mid-September).
How early may grass seed be planted in Illinois?
When Should Grass Seed Be Planted in Illinois? – Beginners with little knowledge or expertise may believe that grass seed may be planted at any time. In contrast, each location has a distinct planting window for lawn grasses based on temperature, soil, and other variables.
