Westland Hydrangea Colourant 500g

Change the colour of the Hydrangeas in your garden with ease using the Westland Hydrangea Colourant. Changing pink hydrangea varieties to blue and darker pink varieties to mauve blue, the Westland Hydrangea Colourant is a salt and easily absorbs nutrients as well as nitrogen for greener foliage. 

For the best results, use the Westland Hydrangea Colourant for plants in acidic soil and use along side our Ericaceous compost where the soil is naturally alkaline and alternatively, double the application rate. 

Features of the Westland Hydrangea Colourant 500g: 

• A combination of iron and aluminium salts 
• Changes the colour of your hydrangeas with ease 
• Acidifies the soil to produce blue flowers 
• Potassium to boost flowering