rootgrow 360g contains mycorrhizal fungi which naturally increase nutrient and water uptake by forming a highly efficient secondary root system. It is completely natural and plant-friendly fungi suitable for use on flowering plants, trees, shrubs and edibles.|An economical mid-range pack size. One pouch will treat up to 19 x 2 Litre pots or a 100L pot.|Comes with a handy 10ml scoop.|One application will support a plant for its entire lifetime!|Please note: rootgrow doesnt work on Brassicas, Rhododendrons, Azaleas, Heathers, Cranberries and Blueberries. Please use to rootgrow Ericoid for those plants (except Brassicas).