Wisteria sinensis alba (White Wisteria, Chinese White Wisteria) is a cultivar of Wisteria sinensis, which is the Chinese Wisteria species. White Wisteria, as the name suggests, is a variety of Chinese Wisteria that produces beautiful white flowers. It shares many characteristics with the species, including its vigorous climbing habit and compound leaves with 7 to 13 leaflets. The white flowers appear in long, pendulous clusters, similar to the lavender or violet flowers of the species.
Flower Color: The main distinction of White Wisteria is its flower color. While the typical Chinese Wisteria has lavender or violet flowers, White Wisteria cultivar bears cascades of fragrant, pea-like flowers in pure white. This color variation adds a touch of elegance and a different visual appeal to the plant.
Growth and Habit: Like other Wisteria sinensis cultivars, White Wisteria is a strong and twining vine that can grow to considerable heights, reaching up to 30 feet (9 meters) or more. It requires sturdy support, such as trellises, arbors, or pergolas, to climb and showcase its cascading floral displays.
Fragrance and Pollinators: Similar to the species, White Wisteria flowers are highly fragrant, emitting a sweet scent that attracts bees, butterflies, and other pollinators. The fragrance of the white flowers can be quite delightful and adds to the overall charm of the vine.
Pruning: Regular pruning is necessary to control the growth and shape of White Wisteria, as well as to promote flowering. Pruning should be done during the dormant season, typically in late winter or early spring. Removing excessive growth and thinning out the branches will encourage better flower production.
Landscape Use: White Wisteria is often cultivated for its stunning floral display. It can be used to create captivating focal points on pergolas, arches, or walls, where the long clusters of white flowers can hang down and create an enchanting canopy. It is a popular choice for gardeners looking for a more delicate and lighter color palette in their wisteria displays.