Relationship between pruning and freeze/frost dates?
A friend just e-mailed me a reminder that March is slated for rose pruning. I have all shrub roses so far that we just planted last year, so I doubt there is anything major to do. However, for pruning in general, do we wait until there is no longer a chance for a freeze and then prune? Or do frost dates also figure into the equation since pruning stimulates growth and new growth could be killed by frost. Please clarify for this rose pruning newbie. :-) (Had shrub roses in the past but never got around to pruning them...)