Ortho GroundClear Super Weed & Grass Killer1 kills even the toughest listed weeds and grasses down to the root QUICK KILL FORMULA: This weed killer starts working immediately with visible results in hours STRONG CONTROL: Effectively controls Crabgrass, Dandelion, Clover, Alder, Knotweed, Milkweed, Ragweed, and other listed weeds WHERE TO APPLY: Use around landscape plants, shrubs or trees; on patios, walkways, driveways, gravel, and mulch beds; along fences and around buildings; and when preparing landscaped areas or preparing a lawn for renovation EASY TO USE: The attached Comfort Wand enables you to apply with a continuous spray