To make hydrangea flowers turn purple, gardeners need to bring the pH levels of their soil to a slightly acidic level between 5.0 and 6.0. In some areas of the United Kingdom, where soils have pH ...

Changing your hydrangea flowers to blue, pink or purple isn't a magic trick. It's a doable science experiment. Macy Meyer is a North Carolina native who graduated from UNC-Chapel Hill with a BA in ...

the blooms come out more of a purple or pink color. That’s usually because the soil pH has changed from what the blue hydrangea had been grown in for sale. You may have heard that you can change ...

A: If they're ending up purple, that sounds like a Hydrangea macrophylla, commonly called "big-leaf" or "mophead" hydrangeas. They're Oriental natives, not U.S. Some hydrangeas are native and some ...