This Wisteria floribunda (Japanese Wisteria) is different from the more popular Chinese Wisteria (Wisteria sinensis). Chinese Wisteria blooms before leafout, which puts on quite a show. Japanese Wisteria’s blooms open more gradually… are longer (1 1/2 ft.) and much more fragrant. These vines are not fussy about soil, drought tolerant and need pruning at least twice a year to control size and shape and encourage bloom production. This sturdy arbor was built a few years ago after this vine twisted and brought down the previous arbor, which had posts sunk into the ground.