ESPOMA ORGANIC WEED PREVENTER *25 lbs. Made from 100% corn gluten meal. Granulated for easy spreading. Prevents crabgrass, dandelions and other problem weeds in the lawn while it feeds. The natural way to a weed free lawn. Coverage up to 1250 square feet. Safe for people, pets and the environment. Adds long lasting slow release NitrogenEspoma Organic Weed Preventer, 100% Pure Granulated Corn Gluten, Prevents Establishment Of Weeds Including Crabgrass & Dandelions.