Does Wisteria Flower All Year. May 19 2017 While most plants need nitrogen it encourages leafy growth not flowers. The blooms appear in mid- to late spring in May or June in most places.
Wisteria takes several years to mature and become established before it begins flowering with gusto. As the name suggests this wisteria Wisteria macrostachya Betty Matthews bursts into flower in summer typically June. Proper planting pruning and care can accelerate the blooming process though.
This is a variety of a native vine known as Kentucky wisteria which is not as aggressive as Chinese wisteria.
Plants grown from seed take even longer. Mar 23 2021 In July tie in all questing growths that are needed to extend the plants coverage but shorten all others to about 1ft. Wisterias planted from seed can take as long as 20 years or might never bloom at all. They dont need your help in obtaining nitrogen.