Spectracide Weed & Grass Killer Concentrate2 is formulated for spot treatment of weeds and grasses. Use it on and around patios, walkways and flower beds. This formula is rainproof in 15 minutes-rainfall or watering after 15 minutes won't wash away effectiveness. Spectracide Weed & Grass Killer Concentrate2 kills down to the root and delivers visible results in as fast as 3 hours. This product kills weeds and grasses as listed, including chickweed, plantain, dandelion, annual bluegrass and clover. Plant new flowers, trees and shrubs in the treated area after just 1 day. When used as directed, Spectracide Weed & Grass Killer Concentrate2 works the first time, every time! For best results, apply during warm, sunny weather when the temperature is over 60 degrees. Mix with water and apply with a tank sprayer at the rates directed on the product label. Completely cover the leaves of the target vegetation. Protect desirable plants with a piece of plastic or cardboard - if desirable plants are accidentally sprayed, wash with water immediately. Do not mow, cut or otherwise disturb treated vegetation for at least seven days following application. Do not use on or around edible feed or food crops. Guaranteed results or your money back - see product label for details.