"In America, where it was grown for some years before reaching [England], it has been largely imported from Japan, where it is common in gardens and is said to be found wild in the hill-ranges of Nippon. Though normally flowering on the old wood, in very fine seasons it has been known to flower again in the autumn upon its new growth. […] For charm of flower and value in the flower-garden this shrub is worthy to rank with any flowering tree."
This illustration and the description are from volume two of "Flora and sylva. A monthly review for lovers of garden, woodland, tree or flower" edited by William Robinson, 1838-1935. (Published in London, 1903-1905)