I just learned something. I'll go "fix" my bonsai-to-be. No one ever told me to put it in the ground.
I have a Japanese maple that I want to train, plus a little baobab (that I think can stay in it's pot), and a little dwarf Sitka spruce that grows slower'n the Alps. That one will topp off at three feet in about 30 years. Automatic bonsai!