Hydrangea won’t bloom!

Question

I have 3 Hydrangea plants that just won’t bloom. 2 get full afternoon sun, 1 gets sun until 12:00. All are in good soil. I’ve tried cutting them back in the fall as well as no pruning what so ever? (I know some bllom on old wood, some bloom only on new growth)

All 3 were given to us by a friend who had no luck with them as well. We have other Hydrangeas in our gardens. They bloom.

Answer 1

The best article on this that I have seen is here: https://plantaddicts.com/why-wont-my-hydrangeas-bloom/