FABACEAE, The Pea family
While walking in the pioneer cemetery and around the neighborhood today I saw purple and white wisteria blooming on fences. This wisteria is fragrant, and blooms as the leaves are unfolding, so you can really see the blossoms.
These vines are vigorous and heavy, so they need a sturdy structure to climb. Prune back to flowering spurs each winter before they bud out. After bloom time, cut back the long ‘streamers,’ just leaving those you want to extend the range or height of the plant. Wisteria generally need no fertilizer and little water once established. Grow in full sun for best blooms. Chinese wisteria is hardy in zones 5 to 10.
The American wisteria, W. frutescens or W. macrostachya is native to the south eastern US and blooms when quite young. Supposedly it is ‘better behaved’ than other wisteria species. It is listed as hardy in zone 5 to 9, but I’ve seen it do well in the Twin Cities.