Roy Yamashiroya’s Salt Lake home features dozens of bonsai, including fruiting plants such as tangerine, Meyer lemon, calamansi, lime and starfruit trees. He uses aluminum wire to shape the plants.

The practice of bonsai originated in China but has become an art form in Japan over the last thousand years or more. Bonsai is the practice of growing a potted tree in miniature form. Initially, it ...