The original, and many would argue still the best. Since it was exhibited in 1924, this cultivar has gone on to become one of the most popular late-summer flowering trees in general cultivation. It has been propagated and distributed widely and is now found in gardens across the world’s mild-temperate climatic zones, on the west coast of North America from southern California to British Columbia, in milder areas of Europe with an oceanic climate and in similar parts of Australia and New Zealand. It has achieved over 22 m height at Glenarn Garden, near Helensburgh, Scotland. (The Tree Register 2018).