(VX) Sulphate of Iron 1kg

Sulphate of Iron reduces soil alkalinity to create ideal growing conditions for acid-loving plants including azaleas, magnolias, conifers, ericas, and alpines. This iron sulphate heptahydrate formulation supplies essential iron whilst improving nutrient availability and plant health. Work into soil before planting, or apply as a top dressing to established plants during the growing season and lightly hoe in. A vital amendment for calcifuge species requiring acidic soil conditions.