Vitax Hydrangea Colourant - Transform Pink Hydrangeas to Blue, Ideal for Acid Soil, Easy-to-Use for Indoor & Outdoor Plants, 2 Pack (500g)

Transforms Pink Hydrangeas to Blue: Specially formulated to turn pink hydrangeas into vibrant blue blooms by adjusting the pH of the soil, ideal for those looking to enhance their garden's color. Ideal for Acidic Soil: Best results are achieved when used in acidic soils, where iron or aluminum salts are naturally present. If you have alkaline soil, simply double the amount for the desired effect. Perfect for Both Indoor & Outdoor Plants: Suitable for both potted hydrangeas and those grown outdoors, making it a versatile solution for all types of hydrangea cultivation. Easy to Use: The powder dissolves easily in hot water, ensuring quick mixing and effective application. Ideal for both novice and experienced gardeners. Long-Lasting Results: Hydrangea Colourant continues to work throughout the growing season, ensuring consistent and vibrant blue flowers with regular watering.