HOW DO YOU CHANGE COLOR ON HYDRANGEAS?
It’s important to know what kind of hydrangea you have. Some will change colors and other ones won’t. For those that do, such as BloomStruck Hydrangea, the flower color is tied into the soil’s pH. A more acidic soil combined with aluminum sulfate will lower the pH and help turn the flowers blue. Color Me Pink and Color Me Blue soil amendments make it easy to get the flower colors you want. Want to learn more? Check out my hydrangea soil science video.