Hydrangea colourant

Price: €9.95

In acidic soils, hydrangeas are blue, in lime-rich soil hydrangeas 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. (M, A)