Contains 100% corn gluten meal a natural, pre-emergent weed seed preventer
Helps inhibit weed seed germination (dandelions and large crabgrass)
Best for established lawns of predominantly perennial ryegrass and Kentucky bluegrass
Use 2x a year, in early Spring and late Summer/early Fall after heat stress has passed
9.1 kg (20 lb) package covers up to 93 m2 (1,000 ft2)