For changing pink hydrangeas to blue. Hydrangeas growing in the presence of iron or aluminium slats will tend to change colour and produce blue flowers. Varieties naturally pale pink tend to blue best, the darker pink varieties turning to mauve/blue. Best results are obtained with plants growing in acid soil.
Soil pH Tester
Bone Meal 1.5Kg
Bone Meal 10Kg
Sulphate of Ammonia 1.5kg
Organic Vegetable Feed 1.5kg
Organic Chicken Manure Pellets Bucket 10kg
BIG TOM Super Tomato Food 1.25L + 50% Extra Free