Sulphate of iron makes soil more acidic, enabling special acid-loving plants to take up the nutrients they need for healthy growth and development. For these special plants, if soils become too alkaline they suffer severe deficiencies when essential nutrients such as iron become unavailable. Sulphate of iron enriches and unlocks these nutrients from the soil.
Sulphate of Iron can be applied every 4-6 weeks during the growing season from March to the end of August. Granules should be worked into the soil. During dry weather, water thoroughly before and after application.
One handful of Sulphate of Iron is approximately 35g (1¼ oz).
Apply 35g/sq. m (1¼ oz/sq. yd) around the base of established plants. Gently fork into the soil surface without disturbing the plant roots. Or alternatively, sprinkle the product over the soil surface, around the stem of the plant and water thoroughly. When planting out apply 35g/sq. m (1¼ oz/sq. yd) to the bottom of the planting hole and mix well with the soil or compost when refilling the hole.
Apply 35g/sq. m (1¼ oz/sq. yd) on the soil surface and fork in. Take care that the granules do not touch the plant leaves or
stems. Water in well after application.
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