Some thoughts on this plant. I grow it in pretty much full sun. It tolerates it, but sometimes it looks a bit sad. Ive read it prefers part shade or even shade. I think part of its adaptation to be competitive and survive in its natural habitat is that full sun really destroys its apical dominance. Ive got as many branches growing down as up. Wants to become a shrub.
But when light would be lower it would probably aspire to be a tree. Thats how I interpret what Ive read and seen.
Carpinus orientalis grows in a huge area - some varieties are much more suited to bonsai than others Im sure.
Good: maybe 'perdika' and good orientalis seedlings
Bad: subspecies 'macrocarpa' and, I feel, whatever I have
This is my Korean hornbeam for comparison. I like its habit and leaves and it doesnt let its leaves hang on hot days as far as I remember
A direct comparison of shoots. Left - orientalis vs Right - coreana. On uninhibited growth, orientalis leaves (at least of this individual) are more elongated.
Below: The orientalis today. Some downwards growing branches have been removed a while ago.
Just to be fair to it, a picture of the smallest leaves on it. I dont know whats achievable with bonsai techniques in this regard. I am not excited to try over many years.
Maybe I'll give this to an aquaintance to bury in his backyard and try to find better seedlings in the future.