Produced from natural potash rock is ideal for all organic growers. Particularly suitable for fruit trees and bushes which have a high potassium requirement, tomatoes, vegetables etc. General organic use to balance organic fertilizer and composts devoid of this essential element. It is extremely slow acting and one application will last for several years. For the greatest benefit, it should be lightly dug in during Autumn or early Winter at a rate of 100-200gms. per sq. mt.