I'm a bit worried about mine. Last winter it froze almost to the ground. As it started pushing up new growth this year, a friend's son ran through my propagation area and just caught the top of the the tree with his shoe. It broke about 80% of the way. I cleaned up the wound and put the tree back together. Once the two parts were fitted together, I put some urethane adhesive (the stuff they glue the windshields into cars) on the outside to hold it together. It has grown okay, but the break is still weak.
Normally I would wait for it to go dormant, then cut it just below the break next spring. The problem I have is that it cannot stay where it is. I have to dig it up and move it to another location or a container. I've given some thought to moving it now, while the ground is still warm and it can reestablish roots before it goes dormant... but really none of the options I have leave me with a warm fuzzy feeling. I'm worried the top will completely brake off and there will not be enough umph left in the roots for it to break dormancy next year.
Has anybody repotted one of these who can tell me what the root growth is like?