Take control of your outdoor space with Roundup® Weed & Grass Killer Concentrate. This 35.2 oz formula is designed to kill even the toughest weeds and grasses down to the root, including dandelions, crabgrass, poison ivy, clover, and more. Rainproof in just 30 minutes and delivering visible results within hours, it’s ideal for use around flower beds, trees, fences, driveways, and walkways. One bottle makes up to 11.7 gallons of spray solution, covering up to 3,500 sq. ft., making it perfect for both spot treatments and larger areas.