Ace Weed and Grass Killer RTU Liquid 1 galACE Ready To Use Weed & Grass Killer5 kills weeds and grasses down to the root. The fast acting formula produces visible results within hours. For best results, apply with the attached sprayer when the wind is calm and weeds are actively growing. Use around perennial landscape plants, shrubs, or trees and along patios, walkways, driveways, and other hardscapes. ACE Ready To Use Weed & Grass Killer5 kills weeds and grasses down to the root Use along