This safe and simple granular fertilizer provides balanced, slow-release nutrition for all types of crops. Based on biologically stable compost, sulfate of potash and feather meal, Sustane 8-2-4 helps promote rapid and vigorous vegetative growth for up to 9 weeks. Sustane replenishes soils with a rich supply of humus, and all of the nutrients essential for quality plant growth. This fertilizer also makes an excellent amendment to potting soil mixes. 

Medium grade, 200 SGN or 1.4-2.8mm granule size.