Transform your pink hydrangeas into stunning blue or mauve blooms with Vitax Hydrangea Colourant. ...Transform your pink hydrangeas into stunning blue or mauve blooms with Vitax Hydrangea Colourant. This specially formulated 250g pack introduces essential iron and aluminium salts into the soil to achieve vibrant colour. It is ideal for both outdoor and potted hydrangeas, working best in acidic soil conditions. For alkaline soils, simply double the quantity. The colourant dissolves easily in hot water and can be mixed directly with the soil or watered in weekly during the growing season (March to September). The final colour achieved will depend on the specific hydrangea variety. Please handle with care and keep out of reach of children.
Transform your pink hydrangeas into stunning blue or mauve blooms with Vitax Hydrangea Colourant. This specially formulated 250g pack introduces essential iron and aluminium salts into the soil to achieve vibrant colour. It is ideal for both outdoor and potted hydrangeas, working best in acidic soil conditions. For alkaline soils, simply double the quantity. The colourant dissolves easily in hot water and can be mixed directly with the soil or watered in weekly during the growing season (March to September). The final colour achieved will depend on the specific hydrangea variety. Please handle with care and keep out of reach of children.