Expert Gardener Southern Weed & Feed II Lawn Fertilizer 16 lb., with weed control kills the weeds, not the lawn. This granular lawn fertilizer and weed control product kills dandelions, chickweed, and 110+ other major lawn weeds while feeding your lawn with a slow-release fertilizer that feeds up to 3 months for a lush green weed free lawn. Apply when broadleaf weeds are actively growing in Spring or Early Fall. Remember to always apply to a wet lawn and apply when no rain or water will be on the lawn for at least two days after application. After two days water in thoroughly, people and pets may enter the area when the lawn is fully dry after first watering. Ideal for use on Centipede, Bermuda, Kentucky Bluegrass, Tall Fescue and St. Augustine. You can expect to see a greener lawn with weeds starting to wilt and die within 7 days after applying as directed.