When Does A Wisteria Flower. Wisteria blooms are highly fragrant and come in a variety of colors ranging from pink to purple to white. However wisteria is known for growing rapidly and taking over the local planting area.
The plant can take up to two months for all of its blooms to show through in their entirety. The cuttings should be rooted in about four to six weeks. The blooms appear in mid- to late spring in May or June in most places.
Wisteria wants to bloom when it feels increased warmth from direct sunlight and when there is nothing above to climb.
Check the soil frequently and water when dry to the touch. Wisteria evolved where success lay in grappling up through a shaded canopy putting lots of energy into climbing but none into blooming until it reached full sun and knew it was at the top. Wisteria blooms vigorously in spring producing clusters of lilac-color flowers on new growth which in turn emerges from spurs off the main shoots. With stunning pendants of scented flowers in May or June a mature wisteria can completely transform a property.