Effective herbicide that provides fast-acting control of weeds, grass, mosses, and algae within hours. Captain Jack's Deadweed Brew is great for use on visible weeds within vegetable and flower gardens, landscaped areas, and lawns. It can also be used on visible weeds around and on buildings, sidewalks, fences, bark mulch, driveways, patios, and gravel. Approved for organic gardening.