This is an easy way to avoid the backbreaking chore of bending over to hand weed. Use Hi-Yield Herbicide Granules in listed areas like flower and vegetable gardens, around ornamental trees and shrubs, and other areas you want to keep weed free. Hi-Yield Herbicide Granules will control many common broadleaf and grassy weeds using Treflan (trifluralin). Prevents 27 different grassy and broadleaf weeds, including chickweed, goose grass, sandbur, purslane, and thistle. Best applied early in the growing season or after weeding, as it prevents weeds but does not kill established weeds.