Hydrangeas Color Change

Question

When we first planted our hydrangeas they were pink. The next year they were purple. This year they are green. Is this normal or does this indicate a soil problem?

Answer 1

Here is an article or two that you may find helpful:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/green-hydrangea-blooms.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/change-hydrangea-color.htm