You can kill weeds without harming your lawn with Ortho® WeedClear™ weed killer for lawns ready-to-use spray. This weed killer kills over 250 common weeds, including dandelions, clover, poison ivy, chickweed and dollar weed. It is made especially for residential lawns and contains three proven ingredients to specifically target and destroy other common lawn weeds, without harming your grass. This herbicide works by entering weeds through their leaves and moves throughout the plant to kill all the way down to the root. You'll see visible results in hours and it becomes rain-proof within one hour upon drying. To apply, simply turn the sprayer nozzle to your desired setting. People and pets may enter the treated area after the spray has dried. For good results, use when weeds are small and actively growing in the spring or fall.