This new and improved RoundUp weed and grass killer is a stronger and better concentrate for the average farmer or just for those planting their own garden. Good for use around patios, walkways, driveways, gravel or mulch beds. This product kills all kinds of weeds and grasses and makes your lawn look great around fence rows. Rain Proof in 30 minutes. A 32 oz bottle covers up to 6900 sq ft. and makes 23 gallons. Due to changes in shipping regulations, we cannot ship this item to California.