Sinclair Sulphate of Iron
Use Iron Sulphate as a long lasting plant tonic for acid loving plants, for example ericaceous plants like, Heathers, Rhododendrons, Conifers, Camellias and Azaleas. Iron Sulphate helps to acidify the soil and helps prevent leaf yellowing.
The recommended application rate is 35gramms per square metre. Do not over apply: use the recommended rates only.
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