Recovery Organic Lawn Fertiliser by Viano utilises the effective ingredients of nitrogen 8, phosphate 6, potash 13 & magnesium 3 to accelerate plant growth This fertiliser also has a stimulant called Humifirst which triggers biological activity by attaching itself to particles of soil. Humifirst improves soil structure & helps it hold more nutrients & water This 20kg bag covers 400m 2 & is best applied from March-October Works on soil for 12 weeks Almost works immediately Perfect to use after drought, flooding or hard wear Gives lawns a strong colour even in winter months 3 month slow release Granular application