Hydrangeas are one of the only types of flowers ... while pink or reddish flowers signify pH that’s alkaline (above 7.0). A pH between 6 and 7 will net purple or pinkish-blue blooms. Hydrangea ...

Hydrangea varieties such as hydrangea macrophylla and serrata can range in colour from pink to blue, with every shade of fuchsia, plum, and violet in between. Blue isn’t a prevalent colour ...

In Japan, hydrangeas represent understanding and apology, while in Europe, these flowers are associated with boastfulness.