This Preen 16 lb. Garden Weed Preventer allows users to prevent weed seeds from germinating in their gardens. Spread this weed preventer on bedding areas and water in to provide weed control for up to 3 months. Ideal for flower beds in flower, shrub and all bedding areas, the garden weed preventer is safe for use around over 200 established flowers, vegetables, trees and shrubs. Use to stop weeds before they start for up to 3 months, guaranteed Safe for use around over 200 established flowers, vegetables, trees and shrubs Applicator scoop included with the weed preventer for convenience Apply for flower beds anytime in spring, summer or fall; not for use on lawns 16 lb. weed preventer container covers up to 2,560 sq. ft. Does not kill existing weeds; all existing weeds and grasses must be removed prior to use Safe for use on edibles (see use directions for complete list)