Prevents weeds when used as directed for up to 3 months. Keeps out virtually all weeds around flowers, shrubs, ornamentals, and certain vegetables. Won't harm established plants, safe to use around over 200 flowers, vegetables, trees, and shrubs. Eliminates hand weeding all season long. Easy-to-use granules may be applied spring, summer, or fall. Active ingredient: Trifluralin. Glyphosate-free.