You can get a dark pink, but people in the south ... Related: Caring for hydrangea trees. Hydrangeas turn blue based on the pH of the soil they are in. A pH lower than 6.0 typically produces ...

Hydrangea macrophylla is commonly called the mophead type, and their flowers are what most gardeners long for: “People lust after those big blue flowers ... pink with a dark pink edge to a ...