Nice tree. It looks stressed, fine needles. So, to destress, you will need to repot. I know, everyone says don't repot when dressed, but with a tree that has root issues, then repotting is a must- especially with JBP. The tree will certainly start growing by march, repot in late February, early March and get it growing. For JBP to be strong they need to be growing very well. Might be worth heading up and seeing Matsu when he does his repotting workshop (the kid will be almost a year old and not so much of a novelty by then....).