Scotts® 40210 Turf Builder® with Moss Control, 10000 Sq Ft CoverageScotts Turf Builder with Moss Control kills moss and thickens grass to fill in bare spots. Feeds to help prevent future moss problems. Improves lawn's ability to absorb water and nutrients versus an unfed lawn. Kills moss, not lawns. P Free formula Enhanced with new iron source Kills moss not lawns Builds thick, green turf from the roots up Controls moss while helping develop a thick, green lawn Apply anytime moss is present and actively growing For