Greenery Glyphosate RTU is a nonselective systemic herbicide that is absorbed by the plants through its leaves and moves down to the roots killing the weeds listed on this label. Weeds wilt and become yellow and die in 1 to 2 weeks. This product is bound by the soil and is readily degraded by soil microorganisms, thus, has no soil residual activity. This product will control unwanted grass, vines, brush, and sprouting of stumps. It controls even difficult-to-kill weeds like Blackberry, Poison ivy, and Poison Oak. This product can be applied around fences, trees, and shrubs. It can be used on flower beds, mulch, or gravel beds, vegetable and herb gardens, on and around driveways, walkways, patios, foundations and other areas in the yard.