Preen Preen Garden 24-63802 Weed Preventer
Coverage : 5000 square feet; Stops weeds in gardens and shrub areas for up to 14 weeks; 4 out of 5 gardners choose Preen when applying preemergent granules; Recommended for use with nearly 200 bulbs， flowers， roses， shrubs， trees and vegetables; A single application lasts for up to three months; Excellent for use with mulch;

Prevents summer and winter annual weeds from growing in flower and vegetable beds and around trees
Prevents new weeds from growing， it does not kill existing weeds
Excellent for use with mulch.