Kills & prevents up to 4 months. Kills the roots guaranteed (Consumer Guarantee: If for any reason you are not satisfied after using this product, simply send us original proof of purchase and we will replace the product or refund the purchase price). Rainproof in 10 minutes. Visible results in 3 hours. Did you know? People and pets may enter treated area after spray has dried. Where to Use (Yellow color represents area to be sprayed to receive up to 4 months weed-tree control): tree rings; driveways; along fence lines; gravel areas. What to Know: rainproof in 10 minutes; visible results in 3 hours; plant 4 months after application; covers up to 56 sq ft. Note: Product goes on clear and will not stain. www.roundup.com. Product Facts: Container treats up to 56 sq ft. What it Does: Kills and prevents all types of weeds and grasses. How it Works: Important: to prevent new weeds and grasses from growing you must spray the entire area you want to control, not just the emerged weeds. This product works two ways: 1. Glyphosate, the primary active ingredient in this product is absorbed by the leaves. It moves through the weed to the root, stopping the function of an essential enzyme found in plants. Weeds die, roots and all - so weeds don't grow back. Kills only what you spray. Any product not absorbed by the plant breaks down without moving in our on the soil to untreated plants. Weeds begin to yellow and wilt within 3 hours with complete kill in 1 to 2 weeks. 2. The other ingredient provides an invisible barrier in the soil that prevents growth of sprouting weeds and grasses for up to 4 months. Questions, comments or information 1-800-246-7219 www.roundup.com. Resealable label for directions & precautions. Made in USA.