Roundup 1/2 Gal. Exclusive Formula Concentrate Weed & Grass Killer helps you take control of your outdoor space by effectively eliminating tough weeds and grasses down to the root. This powerful formula targets a variety of unwanted plants including dandelion, large crabgrass, poison ivy, clover (both red and white), spotted spurge, and other broadleaf weeds. It becomes rainproof in as little as 30 minutes and delivers visible results within hours. After application, you can safely plant new vegetation from 1 to 30 days later, making it a versatile choice for maintaining a healthy, weed- yard.