Thank you for a solid summary of growing bald cypress.
Personally, I grow mine standing in water all year around and I don’t have to worry about the trees drying out.
One thing I’ve not done, but your post reminded me of it was to screw a board to the base of the tree the way we sometimes due to
Maples. The technique is basically to shave all the roots as flat as possible. Take approximately an eight or 10 inch round piece of plywood. Drill a hole in the center and put a large cap screw through the hole and screwed into the base of the trunk, forcing The roots to grow horizontally along the wood. The piece of wood entry is that buried in soil, or in my case would just be placed in the water
The trees are very forgiving for root pruning just like you showed in the pictures.
You seem to know more about these streets than I do but the one thing I would add is don’t forget the other species in this genius
Esp Taxodium mucronatum. There are some distinct differences, and I personally like the Montezuma or Mexican bald Cyprus slightly better.
I think the Bonsai community still has a lot to learn about these trees.
Initially the flat top style seem to dominate and preferred Bonsai style, but there are now many different bonsai forms Of the tree.
I was particularly fascinated by what Andrew Robinson did with history.
I believe there is a YouTube video where he shows the tree.
Thinking outside the box is good and I think andrew has that skill. Though that tree will need a decade to develop appropriate branches.
Finally I included a picture of what looks like a small BC “knee”. I think in reality it formed because of being grown in a constricted pot which forced the root to create a bump. I know having knees on bonsai BC is pretty uncommon so I’ll take it. The tree is in a forest composition I built this spring. My first forest so it is what it is. Next time I will ask my teacher to help when I make a forest composition.
Thank you again for your post,
Mats