Hello Carl,
I have read up on training pots, but can you explain about the growing box? I am leaning towards not growing trees in the ground because of what I have read about the root system getting out of hand. I have read that keeping them in a training pot will allow the roots to ramify, spread out vs. down and allow for a nice development of the nabari. I also have read that the trunk does not grow as quickly in a box as compared with in the ground, but these trees I am getting have good sized trunks.
Lastly, what soil should I use for the transplanted trees? Should I use bonsai soil with some of their original soil that is still around the root ball
Thank you so much for your ideas
Melissa