My personal like is a trunk less than an inch in most cases. Here is the question. I went to a nursery and bought a ficus green island. They have them in these smal almost yougurt size containers and the trunks get to 3/4". If i planted mine in a bonsai pot that is as deep as the pots they use will i get a similar result. The ficus is sprouting green all over the trunk...imean like 10+ new green sprounts. My pot is as deep but much larger since i wanted to do some things with the arial roots. Will the trunk thicken like these small containers or not likely. Im expecting this to be a five ten year project. I placed one of my plats from a shallow bonsai pot in a small container and the trunk grew very quickly. But its bonsai pot was shallow so im not sure if the constraint of the small pot did it or the increased depth.