Beginner Gardening: Any ideas on whats going on with my Hydgrangea plants? , 3 by Seedfork

Seedfork wrote:
I have lots of Hydrangeas and last year they had small blooms and the blooms stayed mostly green. They are usually blue, not real dark but a very pretty blue. I have no idea why, I did nothing I am aware of differently. People said wait till this year and they will probably be back to normal. So this year they are back pretty much to normal. Not all the blooms are the same color blue, and I even have on small bush with pink flowers. Last year was the first year I ever had a pink bloom on one of my plants.