Feeds and Nourishes to create a healthier tidier and greener turf while controlling moss. In season applications between late Spring (or after the danger of late frosts) and early Autumn, water in 3-4 days after application if no rain has fallen. Allow 10 to 14 days, or until all moss has turned black before scarifying. Contains Ferric Sulphate (Fe2O12S3) and Ammonium Sulphate (H8N2O4S) and fine sand. Supplied in 20kg bags.