Westland Hydrangea Colourant 500g

Are your hydrangeas pink and you'd prefer them to flower blue? Westland Hydrangea Colourant can be use to change the colour of your pale pink Hydrangea varieties to blue, and darker pink varieties to mauve blue.

Westland Hydrangea Colourant works best with plants growing in acid soils. Where the soil is naturally Alkaline use ericaceous compost instead or double the application rate.