I appreciate the answer I received to my question, and I have a followup question. My question was:
I have Mophead (paniculatas) hydrangea bushes, probably 8 – 10 years old, that get covered with beautiful flowers late June and July. The harsh winter in Cincinnati apparently got them. Green branches are coming out at the base of each bush but the rest of the 4 – 5 foot high bush looks dead. Can I cut these back and how far?
My followup question is, only small new branches are appearing at the base. Should I cut all of the other branches down to the base?