Can coffee grounds change the colour of your hydrangeas? We consult gardening specialists for the truth

Picture of hydrangeas with different colours in garden .

If you want to up your gardening game, this sustainable hack for changing the colour of your hydrangeas could be just what you need.

There are many ways you can use coffee grounds in your garden, but did you know you can utilise the acidity of the grounds to alter the colours of your hydrangeas?