Underutilized Trees for Urban Use: Korean mountainash (Sorbus alnifolia)
By Michelle Sutton, Council Editor
I can think of few trees with the year-round beauty of Korean mountainash (Sorbus alnifolia). It is notable for its delicate and showy white spring flowers, handsome deeply veined summer foliage, yellow to orange fall color, reddish-pink berries in fall and early winter, and elephantine bark in winter (beech-like, but with distinct white markings). Its potential height is 20 to 40 feet and potential width 15 to 25 feet. The cultivar ‘Redbird’ has rosy-red fruits and a more upright form.