Sandai-Shogun no Matsu, a five-needle pine bonsai (Pinus pentaphylla var. negishi) is considered one of Japan’s national treasures. The tree is at least 500 years old and is considered to be one of the oldest known living bonsai trees. It is documented as having been cared for by Tokugawa Iemitsu (August 12, 1604 - June 8, 1651) who was