This 100% organic fertiliser is a by-product of the meat processing industry, and as such may not be for the squeamish. However, it is one of the better organic nitrogen fertilisers, and contains a nice dash of phosphorous to boot. With a slow natural release of nitrogen, some immediately available with the rest continuing to release over 4-5 months, it is perfect for use under glass as well as also being used as an ingredient in other fertilisers such as John Innes Base.
Application rate: 100g sq. m. Dig in well.