Here in NC we had some early warm weather followed by an Easter freeze that destroyed the leafy growth that was just starting to take off. Now almost two months later, I have one hydrangea that shows signs that it is recovering quicker than the other two, although I doubt it will bloom this year. My question is this: On the two that are showing slow growth, it appears that the long stems(?) may be dead - they appear brittle. The only growth is a small amount of leaves at the base of each plant. Will I damage them if I cut back the brittle stems now?