Roundup® For Lawns1 is a formula that kills weeds, not the lawn! It controls over 250 common lawn weeds, roots and all, and is especially effective on hard-to-kill weeds such as crabgrass, dandelion, clover and yellow nutsedge. The ready-to-use formula with our new extended wand makes it easier than ever to spot-treat lawn weeds, without bending over! This fast acting formula starts killing on contact and kills weeds down to the root so they don't come back. In addition, its rainproof in as little as 3 hours! Roundup® For Lawns1 is a simple step towards a beautiful, weed free lawn. Roundup For Lawns1 works great on your lawns, and even better in combination with Roundup® Weed & Grass Killer III to kill weeds in your non-lawn areas such as sidewalks, patios, driveways and garden beds for weed killing options all around your home.