Are there any hydrangea specialists out there? and could they please give me some idea why I haven't any flowers this year. The plant itself looks very healthy and green? should I keep it for another year and wait and see? or dispose of it.? thanks.
Not only the dead heads but pruning any flower buds if you prune the shape of the plant in the fall or winter.
Did you over fertilize? Hydrangeas don't tolerate a great deal of it. Lastly, I see on other threads herein that you may have had a late spring freeze. If the buds from last year had begun to swell and then froze, you'll have few if any flowers...