Hello fellow bonsai enthousiasts,
I bought this Trident Maple in January this year, it was growing in the field at a local bonsai nursery. I noticed that the tree is growing vigorously and i was wondering how the roots were developing. As you can see in the pictures, it has put on a lot of new roots and they also are bound at the bottom (they have formed a layer of 1cm thick). I was wondering if a repot, with root pruning, in a bit shallower training box would be beneficial to the tree? I don’t want it to be root bound etc. If i want/need to repot, i would do this in the beginning of spring 2021 (march/april). Thank you!