Can I make my hydrangea darker pink?
I have some pale pink hydrangeas that were originally cuttings from my late grandma's garden. I want to keep them for sentimental reasons but wondered if I could make them a darker pink by changing the soil pH? I don't know what variety the hydrangea is. I've heard that you can make pink ones go purply blue but wondered if there is a way to get a deeper more intense pink colour rather than a wishy washy pale pink.