Up to 3 Months of Feeding. Freedom from Weeding. Miracle-Gro® Shake 'n Feed® All Purpose Plant Food + Weed Preventer™. Feeds for beautiful flowers and bountiful vegetables AND prevents weed seeds from germinating up to 3 months. Use around listed in-ground vegetables, flowers, groundcovers, shrubs and trees. Won't harm desirable plants when used as directed.