I was given this hydrangea several years ago. It bloomed partially, twice. I have another type that blooms every year in abundance. The one that blooms is extra large and white, while the one that doesn't is blue. When it was given to me, it bloomed beautifully. I have one on the northwestern side of the house and the one that blooms is on the north side, with both having an east-west exposure. Both have the same soil as well. If it doesn't bloom this year, I may dig it up and put a more positive bloomer in its place. Can you give me a few ideas to see if I can save it?