Scotts 4 Step Program Step 1 Seeding Starter Lawn Food with Crabgrass & Weed Prevention, 21.62 lbs. is the essential first step in the Scotts annual 4-Step Program designed to help you establish a healthy, vibrant lawn. This specially formulated lawn food not only fertilizes your freshly seeded lawn but also prevents the germination of a wide range of common weeds including dandelion, large and smooth crabgrass, white clover, chickweed, ground ivy, henbit, and yellow nutsedge. I for newly seeded, overseeded, or newly planted lawns, it works effectively on Kentucky Bluegrass, Tall Fescue, Perennial Ryegrass, Centipedegrass, and various types of Fine, Spreading, and Creeping Red Fescues. For optimal results, apply this fertilizer to a dry, freshly seeded lawn when temperatures are consistently between 60 and 90 degrees Fahrenheit. The product comes in a convenient ready-to-use 21.62 lb. bag that covers up to 5,000 square feet, making it easy to nurture your lawn from the very beginning.