Hardy Planting Zone – Zones 4 to 9
Bloom Season – spring to summer
Bloom Color – usually purple, but sometimes pink, white, or blue
Height at Maturity – 10 to 100 feet long (vine)
Soil Type Preferred – deep, rich soil is best
Sun or Shade – full sun
Wisteria is a fast-growing, high-climbing vine with brightly colored and famously fragrant flowers that will bloom throughout the late spring and summer.
The fragrance of wisteria can be powerful, distinct, and intoxicating but is always reminiscent of a summer's day. The aroma has been compared to hyacinth or freesia. The flowers can range from blue to purple to pink or even white. The flowers grow in densely packed, dangling, grape-like clusters. The clusters have been described as being shaped like pine cones. Wisteria is a member of the legume family and is native to the Eastern United States, although some species are native to Korea, China, and Japan. The Asian species grow even faster than the American species. The American variety has smooth, cylindrical seed pods, while the Asian types have fuzzy seed pods.
Wisteria is a deciduous plant that loses its leaves in the fall.
Wisteria can be trained to grow along with other plants or buildings as a support structure and is most visually striking when it hangs freely from arbors and other such supports to provide a visual focal point, canopy, or even a background cover. If desired, wisteria can be cultivated as a single branch to form a freestanding tree, using the well-known posting and pruning non-vertical growths. Wisteria's beautiful blooms can take several years to mature, but they will begin flowering annually after the initial maturation period. Flower growth occurs best with lower-nitrogen fertilizers and only moderate watering. The full sun encourages bloom as well. New vines will produce the flowers, so pruning of old vines is enabled to generate flowering.