Keep pets, people and water off the lawn for 24 hours minimum. Ideally, keep off the lawn for 48 hours. After that, the lawn can be watered for 10-20 minutes per day. Neither fertilizer or weed control applications are “one and done” products. In particularly weed infested lawns, it can take 2 applications before the lawn is generally weed free. Our fertilizer slowly releases its Nitrogen over 8-10 weeks.