Cork Bark Chinese Elm Bonsai Tree Number 16Y Cork Bark Chinese Elm Bonsai Tree Number 16Y Cork Bark Elms have thicker, more rugged, mature looking bark than regular Chinese Elm. Height displayed is total height, tree and pot together. Outdoor only bonsai tree which will require winter protection. If you have any questions or would like any help or advice please contact us by clicking here. For further details and to view our terms and conditions please click here. UK delivery is included excluding certain areas of northern Scotland and UK islands.