Give Yourself Show-worthy Rhododendrons, Colourful Heathers & The Tastiest & Most Productive Of Blueberries With Empathy Ericoid Rootgrow™endorsed By The Royal Horticultural Societyexcellent For Acid-loving (ericaceous) Plantsdevelops enhanced Root Network For Optimum Nutrient Uptakeencourages Resistance To Droughtsingle Application Gives Your Ericaceous Plants A Real Boost For Beautiful Flowers & The Tastiest Of Blueberries & Cranberriesempathy Ericoid Rootgrow™ Is An Easy-use Powder That You Simply Sprinkle Into The Planting Hole When Introducing Acid-loving Flowers & Fruit Into Plot- It’s Really Effective To Get Your Acid-loving Plants Off To A Flying Start.empathy Ericoid Rootgrow™ Has Specialist Fungi That Naturally Bonds To The Roots Of Plants, Effectively Becoming Part Of The Root System. Roots Then Prosper & Grow Really Fast To Seek Out Nutrients & Water.the Fungi Tracks Down Phosphorus & Potassium & Trace Elements Fast For Great Flowering & Fruiting. Plus They Hold Onto Water Like An Absorbent Sponge, Making Your Acid-loving Flowers & Fruits Super Drought Tolerant.great For Blueberries, Cranberries, Rhododendrons, Azaleas & Skimmias.how Do I Use Empathy Ericoid Rootgrow™?growing In Containers? Add 1 Scoop Into A 2 Litre Pot. Add 2 Scoops Into A 5 Litre Pot. Add 4 Scoops Into A 10-15 Litre Pot.growing In Open Soil? Add 1 Scoop Per Planting Hole.