Safer Brand 32 oz Fast Acting Weed & Grass Killer Spray  5055 This effective weed killer will not move through soil or injure nearby plants, making it better for the environment than harsh man-made weed killers The herbicidal action is rapid with effects visible in hours A contact killer, herbicidal soap will kill any weeds or grass that you spray it on and only those plants This product is non-selective and non-residual. Shield lawn grass and desired plants carefully to avoid damage Safer Brand is the leader in alternative lawn and garden products