Made from natural ingredients, Approved for organic gardening, and safe for use around people and pets. Kills all types of actively growing weeds and grasses. Rainproof when dry, works at temperatures as low as 40 degrees F. and does not translocate. Use around borders, driveways, sidewalks, the base of mature trees, buildings, fence lines, barns and pastures, school grounds, in greenhouses, and other areas where weed control is desired.