They are all in ceramic bonsai pots. All but one have broke through and split the pot. Every few years I saw under the pot to severe the tap root. I may leave them in the ground or put them in bigger bonsai pots. Pots require a lot of watering and maintenance. I don't want them to die in the pot.
good luckNot sure if my bonsai American elm will survive the winter,I hope so ,the original plan was to move the pot into the garage,but the solid granite is way to heavy so I just piled leaves over the base and hope for the best.
You seem to be pretty knowledgeable in bonsai keeping,do you have any photos of trees that you could share with us?good luck
Nice,do you keep that Elm indoors?