Extended Control weed preventer. Labeled for use around 600 plants in perennial flower beds, around ground covers, trees, shrubs, in xeriscape settings, and rock gardens. Works on dandelions, crabgrass, field bindweed, white clover, chickweed, henbit, and more. One application blocks listed weeds from growing for up to 6 months. Does not kill existing weeds, prevents new weeds from growing. Do not use on flower seeds, lawns, vegetable gardens, or water gardens. Apply anytime during the growing season. Glyphosate-free.