Kills The Root. Visible results in hours. Rainfast in hours. Safe to reseed/replant in just 4 days. Kills grass, weeds, brush, vines, stumps. Starts to work on contact. Use in flowerbeds, walkways, driveways, around trees & shrubs, patios and fence lines. Kills only what you spray. Kudzu, Blackberry, Poison Oak & Ivy. Concentrate.