Hydrangea dead branches?
So last fall I was able to snag a great deal on four large hydrangea from HD for $10 a piece. They weren't in great shape but I figured at that price what could I lose.
Since these were my first hydrangea I was not aware that it is advisable to winter protect (now after reading on GW I do!).
So now as you can see in the pictures I am getting lots of leaves blooming from the bottom but the top looks sluggish. I see buds going all the way up the stems but they are not even turning green yet. Did these buds freeze? Should I prune the branches down to the last successful bud?
I am not sure what type of hydrangea these are but I am assuming a mophead variety from the dried flower that were on it last year. I normally would not consider pruning these right now but based on what I have read, if these branches have been damaged it may be smart to prune now? I am aware that I will not get blooms most likely on these branches this year if I do.
Thank you all for your help.