If you can only grow pink hydrangeas it's probably because your soil is too alkaline as this can determine flower colour. Used diluted in water or simply mixed in soil or compost this soluble colourant will encourage blue flowers on your prized plants. Suitable for outdoor or pot grown hydrangeas. Contains Aluminium sulphate. Use weekly for best results.
What Is Supplied
Item 100059 supplied as:
Supplied as a 250g bottle of soluble colourant.
great place to shop
Good sized healthy plant
Review Submitted: 23/08/2018 - 12:39:34