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B&Q£11.99Visit shop B&Q - Sulphate Of Iron Plant Food Granules For Ericaceous Acid Loving Plants Strong Roots Green Foliage 1.5Kg
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Westland Sulphate of Iron Plant Food is designed for gardeners growing ericaceous plants like azaleas, rhododendrons, camellias, and heathers in alkaline soils. It provides a targeted iron boost to eliminate yellowing leaves and gently lowers soil pH for optimal nutrient uptake. While highly effective at correcting iron chlorosis, it should be used carefully to avoid over-acidification of soil that is already naturally acidic.
| Brand | Westland |
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No, this product is specifically formulated for ericaceous plants. Most roses prefer neutral to slightly acidic soil and may suffer if the pH is lowered too much.
Follow the application rates on the packaging, typically once or twice per growing season depending on the severity of the deficiency.
While iron sulphate can sometimes cause temporary damage to weeds, this specific product is formulated as a plant food and should not be used as a primary herbicide.
Yes, it is excellent for container-grown ericaceous plants, but use the liquid application method to ensure even distribution in the pot.
When stored in a cool, dry, and airtight environment, the product remains effective for a long period. Check for clumping as an indicator of moisture degradation.
Results are typically visible within a few weeks as the plant takes up the iron and begins to produce new, healthy green chlorophyll.
Ensure the product is being watered into the root zone correctly. If the issue persists, test the soil pH to ensure it is not too high for the plant to absorb iron.
This is likely caused by moisture exposure. Break up the clumps gently or store in an airtight container to prevent further moisture ingress.
You may have applied the granules too heavily or directly onto the foliage. Ensure you water the plant thoroughly after application to wash residue into the soil.
This product is strictly intended for ericaceous (acid-loving) plants. Always check your soil pH before application using a soil testing kit; if your soil is already acidic, excessive use of sulphate of iron may lower the pH to harmful levels. When applying, avoid getting granules directly on the leaves to prevent potential leaf burn. Store the 1.5kg container in a cool, dry place and keep the lid tightly sealed to prevent moisture from clumping the granules. Always wear gardening gloves during application and wash your hands thoroughly after handling the product.
