2-in-1 solution for moss control and lawn greening. Natural organic seaweed base with Ferrous sulphate and Nitrogen. Blackens moss within hours and stimulates grass re-growth. Improves rooting and overall lawn health. Treats an area of 66m�. Maxicrop Moss Killer & Lawn Tonic is a powerful and efficient 2-in-1 solution designed to combat moss growth while promoting a lush and healthy lawn. This product harnesses the natural benefits of a seaweed base, enriched with Ferrous sulphate and Nitrogen, to deliver outstanding results. The combination of the natural organic seaweed base and the added nutrients provides a dual-action formula.