Sorry to hear they didn't work out for you. I have a few species that do that to me too. Ming Aralias in particular. I'm 0-5 on those.Thank you.
unfortunately, though, I gave up on this project. I have tried these in a pot on at least half a dozen occasions. I have yet to have a full growing season where the tree/trees looks and stay healthy. They just do not seem to like being in a pot. I’ve seen other folks have good luck, but I just haven’t.