Spectracide 32 oz Weed & Grass Concentrate is a fast-acting solution designed to effectively control unwanted weeds and grass in a variety of outdoor spaces. This powerful formula becomes rainfast in just 15 minutes, allowing you to see visible results in as little as three hours. What makes this product unique is its ability to kill the root of the plants, preventing any chance of regrowth. After treating the area, you can safely plant new flowers, trees, and shrubs in just one day. This versatile concentrate is i for use on patios, walkways, and flower beds, making it a reliable choice for maintaining a clean and healthy outdoor environment.