Roundup for lawns is a formula designed for southern grasses that kills weeds, not the lawn. It controls over 90 common lawn weeds, roots and all and works fast on hard to kill weeds such as dollarweed, dandelion, clover and yellow nutsedge. It can be used with confidence on even the most delicate southern grasses, such as floratam and centipede. This ready to use formula with our new extended wand makes it easier than ever to spot treat lawn weeds, without bending over. All you need is one bottle to treat up to 2000 weeds. This fast acting formula kills on contact and destroys weeds down to the root so they don't come back. In addition, its rainproof in as little as 4 hr. Roundup for lawns is a simple step towards a beautiful, weed free lawn. Roundup for lawns works great on your lawns and even better in combination with Roundup weed and grass killer concentrate plus to kill weeds in your non lawn areas such as sidewalks, patios, driveways and garden beds, for weed killing options all around your home.