SedgeHammer® is a selective herbicide for use in controlling nutsedge in turf and landscaped areas, including those with established woody ornamentals. It knocks out nutsedge without injury to turfgrass, established ornamentals, shrubs, and/or trees. SedgeHammer® is absorbed through the roots, shoots and foliage into the nutsedge plant within 24 - 48 hours and enters the plants vascular system. It travels directly to the base of the plant where the growing point is located. Yellowing and browning of the leaves usually occurs within 10 - 14 days. It may take an additional 2 weeks until the nutsedge plant is completely dead.