Wisteria was so named in 1818 by the Anglo-American botanist Thomas Nuttall after the German-American physician-anatomist, Dr. Caspar Wistar of Philadelphia.
This plant flowers twice a year. Shimla is given a pretty opulent display in spring on branches which are otherwise almost bare. The summer version is scantier and often the victim of fierce hailstorms. These lovely flowers are accompanied by bunches of coppery-gold young leaves. A marvellous contrast of warm & cool palette.