Ortho WeedClear Weed Killer Spray for Lawns, 24 oz. is a powerful weed killer designed to eliminate over 250 common weeds without harming your lawn. This effective formula targets weeds such as dandelions, clover, poison ivy, sumac, chickweed, and dollarweed, making it i for residential lawns. Containing three proven ingredients, it works by entering weeds through their leaves and moving throughout the plant to kill it down to the root. Visible results can be seen within hours, and the spray becomes rainproof within one hour after drying. Safe for people and pets once dry, it is used when weeds are small and actively growing during the spring or fall for optimal results.