Preen Garden Weed Preventers block weeds before they start and are safe for use around over 400 flowers, vegetables, and trees. Learn how Preen gives you 3 months of freedom from weeding in just 4 easy steps.

Preen One Lawncare eliminates the need to use multiple products by giving homeowners an easy-to-apply lawn care solution that delivers three important treatments in just one application. It prevents crabgrass seeds from sprouting and, unlike traditional crabgrass prevention products, also kills crabgrass seedlings up to 4 weeks after germination. It kills dandelions and more than 250 types of tough broadleaf weeds on contact. It feeds the lawn continuously with a slow release formulation that provides even greening and supports strong roots for drought resistance.