Hydrangea colourant, 500g

Price: €9.95
Current stock: 3

In acidic soils, hydrangeas are blue, in lime-rich soil they are pink. This products contains iron and aluminium salts to turn pink hydrangeas blue. Pale pink hydrangeas respond best, becoming bright blue, darker pink varieties turn a more purply-blue. 500g container. Please note, items displayed on this website may not be available in each of our shops.