Preen Garden Weed Preventer Plus Plant Food works all season long. Unlike other weed killers and plant foods, one easy application prevents weeds for up to three months and feeds your plants for beautiful color, foliage, and strong roots to help resist disease. This product will not kill existing weeds, it prevents new weeds from sprouting, eliminating the need for difficult and time-consuming hand weeding. Safe for use around over 200 established flowers, vegetables, trees and shrubs. One application fertilizes your plants and prevents weeds for up to three months. The pail contains 16 lb. and covers 2,560 sq. ft. An applicator scoop is included for easy application.