This is the only double-flowered wisteria in existence. Not only this, but it produces the darkest couloured flowers. Black Dragon is also known as Violacea Plena.
Growth habit: Creeper up to about 10 meters high. Ranking with the sun, winding to the right.
Flowers: Special because of the double flower, violet colored in short raceme, 25 to 35 cm.
Flowering time: From mid-May
The beautiful Wisteria Blue Dream displays stunning long racemes of up to 50cm, bearing powder blue flowers with a slight yellow eye, and a light fragrance.
Prolific has more flowers per truss than other varieties. The individual flower is also larger than average. This means that the Prolific has very beautiful, full flower clusters.
Longwood purple is less vigorous than the asian types, making it more desirable for those who don't like those fast growing types.