Wisteria frutescens 'Longwood Purple'

American wisteria is quite different from its Asian relatives in many aspects. It grows smaller and more compact, producing shorter flower racemes. Longwood Purple is a variety of American wisteria. The lovely flowers are rich violet purple, borne in short racemes about 10 cm long. Their fragrance is faint. They come out in profusion from late May and after the main flush has finished a short break comes after which the plant produces flowers again, not plenty, but one by one usually until late summer. We've seen it repeat bloom right through September! Green bean-like fruits follow the flowers.