I have many youngins and I long for the day that the old stems really annoy me and I ponder the decision to prune or not to prune...
and a few self pruning, like this one--I thought it was dead and then it came back to life. It looks dead again, right now. I hope it comes back to life again next year...
...and only one so far that I must prune-- jouiniana praecox. I chopped it to nubs this spring and it has grown about 25ft in all directions this year. I need to move it. It is blooming its fool head off though.