Japanese wisteria Wisteria floribunda Wisteria floribundaPhoto/Illustration: Peter Lindtner 1 2 3 4 5 6 7 8 9 10 11 Japanese wisteria (Wisteria floribunda) wis-TEER-ee-ah floor-ih-BUN-dah Genus: Wisteria Dramatic clusters of blue-violet to red-violet flowers with an intoxicating fragrance grace this vigorous twining climber. Its springtime cascading flower clusters can grow to 3 feet long or more in some cultivars. Blooms typically open first at the base and last at the tip of each cluster. Trunk diameter can reach 7 to 8 inches after 20 years, and the plant can climb to 35 or more feet in height, though its size is easily contolled by pruning. Care: Provide rich, well-drained soil with plenty of space. Wisteria needs strong support and can be trained as a tree, vertically on a wall or arbor, or horizontally on the ground. Growth can be restricted to a few limbs or allowed to spread vigorously to completely cover a wall. Early blooms can be damaged by freezing temperatures. Prune as needed when growth is active, but ideally in early, mid- and late summer. Can be difficult to get to bloom. Propagation: Not practical for most home gardeners. Problems: Dieback, crown gall, leaf spots, viral diseases, Japanese beetles, aphids, leaf miners, scale insects, and mealybugs. Overview Height 15 ft. to 30 ft. Growth Habit Spreads Growth Pace Fast Grower, Invasive/Aggressive Grower Light Full Sun to Part Shade Moisture Medium Moisture Maintenance Moderate Characteristics Attracts Hummingbirds, Fragrant Flowers, Showy Flowers, Showy Foliage Bloom Time Spring Flower Color Blue Flower, Purple/Lavender Flower Uses Specimen Plant/Focal Point, Trellis Style Cottage Garden, Formal Garden Seasonal Interest Spring Interest Type Vines Related Plants to Wisteria floribunda 1 2 3 4 5 6 7 8 9 10 11 Downy clematis Clematis macropetala 1 2 3 4 5 6 7 8 9 10 11 Alpine clematis Clematis alpina 1 2 3 4 5 6 7 8 9 10 11 Clematis ‘Nelly Moser’ 1 2 3 4 5 6 7 8 9 10 11 Japanese honeysuckle Lonicera japonica View the discussion thread.