I've done a bit of research, and have seen people recommend cutting back in spring, late summer, fall or winter. That didn't help me out much. If overwintering matters, it will be in my detached, unheated garage. I do have a crape in the landscape, but it is really big and is still the last thing in the yard to wake up. This one has grown like a weed this summer and obviously needs some serious pruning. Any suggestions are appreciated.