Sulphate of Iron
Sulphate of Iron Is ideal for the acidic-loving plants, this is due to the products ability to reduce the alkalinity of soils therefore releasing the essential natural elements and nutrients within said soil. Azaleas, rhododendrons, magnolias and conifers as well as ericas and alpines benefit from regular use of Sulphate of Iron.
Before planting or sowing work it slowly into the soil. Whereas if applying to established plants you need only apply the product as a top dressing before watering well.