Rootgrow is now available to gardeners Nature's aid to plant growth. Contains friendly mycorrhizal fungi 'fungal-roots' that form a natural beneficial relationship with your shrub and rose roots. Rootgrow is a once-only treatment that increases the volume of soil explored by the plant by up to 700 times! rootgrow acts like a permanent fertiliser and ensures rapid establishment BUT does more than a fertilizer in that you can expect healthier plants because the friendly Mycorrhizal Fungi help plants have better growth, vigour, flowering and long term survival via this balanced nutrition system. Features:- Better nutrition Improved flowering Natural plant health insurance Give your shrubs, roses and vegetables extra metres of roots "