Protect your landscape from the toughest weeds and grasses with Ortho® GroundClear® Weed & Grass B-gon™ Patio & Landscape Weed & Grass Killer. It kills to the root so weeds don't come back and controls weeds and grasses including dandelion, crabgrass, chickweed, clover, and purslane. Ortho® GroundClear® Weed & Grass B-gon™ Patio & Landscape Weed & Grass Killer absorbs on contact, starts working immediately, and is rainfast in just 15 minutes. Use this product around perennial landscape plants, shrubs, or trees; on patios, walkways, and driveways; on gravel or mulch beds; along fences; around buildings; when preparing landscaped areas; and during lawn renovation. For best results, apply when weeds are actively growing and when the air temperature is above 60°F. To use, spray weeds until foliage is thoroughly wet. Shield or do not spray plants you want to keep. Do not apply this product in a way that will contact any person or pet either directly or through drift. Do not allow people or pets to enter the treated area until sprays have dried. Ortho® GroundClear® Weed & Grass B-gon™ Patio & Landscape Weed & Grass Killer comes ready-to-use with the battery-powered Comfort Wand® for a continuous spray.