The trident maple from my previous post is one of a few from the batch that I still have and possibly my favorite at the moment.
When I was in SoCal I had a lot of problems with root heat (or so I thought) so I started potting everything out of ceramic containers into wooden boxes. The theory was that wood is a much better insulator from the hot sun than a ceramic pot. I’m not sure that the box made any difference in this case, but it did provide plenty of room for the roots to run.
The root trimming went fairly quickly; I removed a couple of larger roots that had formed along the surface going to the right of the tree and then trimmed back close to the base. Tridents can take a lot of cutting to the roots, but too much cutting will slow them down the following year. Last year, one of the tridents I repotted was on a board that I had forgotten about. When I found it, I realized that almost the entire root ball would have to be removed to get it out. I did so and there were only a few roots left. In the spring the tree budded out slowly and it didn’t grow much for most of the year.
After trimming the roots I had a decision to make about what pot to use:
When show time rolls around, hopefully in about two or three years, or ten if things don’t go as well, I’ll have a couple pots to choose from.