Expert Gardener Ultra Southern Lawn Fertilizer & Weed Control For use on Centipede, Bermuda, St. Augustine and Zoysia grasses. Not for use on Bahiagrass. Always apply to a wet lawn No rain or water on the lawn until 2 days after application Condition: New Kills the weeds, not the lawn-Kills 110+ Weeds Apply Lawn Food when broadleaf weeds are actively growing in the Spring or Early Fall NPK 18-0-18 fertilizer formulation Lawn Food Fertilizer and Weed Preventer 32 lb.; 0.55 cu ft., Covers up to 10,000 sq. ft.