Hard on weeds, easy on you. Effective in cool and cloudy conditions as well as warm and sunny weather. No mixing, no measuring. Use in and around vegetable gardens, flower beds, tree rings and mulched beds, as well as on cracks in driveways, walkways, and patios. Kills to the root. Rain-Proof in 10 minutes. Visible results in 3 hours. Active ingredient: Glyphosate.