Preen (2164031) Lawn Step Saver Weed Control Plus Lawn Fertilizer - 18 lb. bag Covers 5000 sq. ft. Controls weeds and fertilizes lawn in one easy application Prevents crabgrass AND kills over 200 lawn weeds including dandelion, chickweed, thistle and clover Timed released 24-0-6 fertilizer with slow release nitrogen has the nutrients a lawn needs for up to 2 months Apply in spring for season-long weed control and feeding DO NOT use on St Augustinegrass in Florida, or on dichondra and carpetgrass as serious lawn injury will result