The trees require extreme caretaking commitment, as they can live for hundreds of years with daily watering and monitoring. The silverberry suffered the most damage to its branches, but Packard says it could have been worse. Other Recommended Stories Culture. The Japanese black pine, left, and silverberry bonsai trees stolen from Pacific Bonsai Museum in Federal Way were discovered intact on a road near the museum Tuesday night. He used a perforated tin can as a container. Federal Way police are investigating grainy security video footage showing a man walking through the museum. Its appearance may change, but not in a way that compromises its value.