The buds are a slightly deeper pink. The copious flowers of this popular form are shell-pink and semidouble with from 7 to 12 petals each. Plant hunter Philipp Franz von Siebold introduced it into Europe in the 1860s. Light pink flowers are semi-double, quite large, and freely produced. In autumn the leaves turn a pleasing shade of red.
Trees become wide-spreading with age.
Because the leaves are resistant to disease and insect damage, this variety is excellent for large plantings. True to its name, 'Autumnalis' begins blooming around October, continues sporadically into December, and finishes in the spring with a last burst coinciding with new foliage. Pale-pinkish flowers are single to double and can be quite striking during winter thaws. Also recommended by the Garden Club of America in Plants That Merit Attention. Prunus subhirtella 'Rosy Cloud' This lovely cultivar produces soft-pink double flowers and attractive autumn foliage.