Wisteria frutescens (American Wisteria): Native Vine with Lilac Clusters

Overview

American wisteria (Wisteria frutescens) is a North American native vine with abundant pale lilac-purple flower clusters. Less fragrant than Asian species but easier to control—no long root suckers. Blooms June-August (later, avoiding late frosts). Climbs 30+ feet on arbors, pergolas, walls. Can be trained as small tree. 'Nivea' is white-flowered form. Blooms on current season's growth.

Growing Conditions

Full sun in well-drained soil. May take several years to establish flowering. Root restriction encourages blooming. Grows as far south as Florida.

Care and Maintenance

Prune soon after blooming and again in fall. Provide strong support. Propagation difficult for home gardeners.

Common Problems

Dieback, crown gall, leaf spots, viruses, Japanese beetles, aphids, leaf miners, scale, mealybugs.

Landscape Uses

• Arbors, pergolas, walls
• Tree form (standard)
• Native plant gardens
• Cottage and formal gardens
• Summer bloom (avoids spring frost)

Key Features

• Native to North America
• Pale lilac-purple flowers, summer bloom
• No invasive root suckers
• Easier to control than Asian wisterias
• 30+ feet climbing
• Fragrant flowers, showy foliage