Preen, 5 LB Jug, Garden Vegetable Weed Preventer, Organic Weed Control For Vegetable Gardens & Organic Gardeners, Contains Corn Gluten, 100% Organic, Good Housekeeping Seal Of Approval, Sprinkle Around Established Vegetables, Herbs & Fruits Every 4-5 Weeks, Prevents Crabgrass, Dandelions, Clover & Other Common Weeds, Immediately Safe For Kids & Pets.