Rootgrow is the first and currently the only plant or soil treatment licensed by the Royal Horticultural Society.

This specially adapted Rootgrow mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.

It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.

Within weeks of application, it will improve a plant’s nutrient and water uptake, resulting in vigorous growth with abundant fruiting and flowering - reducing the need for synthetic fertiliser.

Available in a 200g bag.