This Nikko blue hydrangea bloomed for the first time last year and was given to me by my coworker (and plant addict) Kim. She came in to work all frazzled and hot one morning after digging a piece of this up for me. It sat and sulked for 3 years until last year. You can imagine my joy at seeing blooms emerging!
Here is a later pic in full bloom:
There are too few blue blooms in the garden and I just love the sky blue color of the Nikko. The artemesia combo nearby was a happy accident. I think they compliment each other well don't you?