origin:

Japan, probably synonym

Japan. Not registered with APS. Japanese suffruticosa. Large semi-double to double white flowers (usually more double than the image). One flower per stem. Strong stems present flowers in an upright fashion. Opens with a blush of pink and by the end of the day is completely white. Superior foliage of medium green. To four feet in Wisconsin. A measured grower-not fast, but not slow. Rarely available. Fertile both ways. One of the best white suffruticosas.