BLUE SAPPHIRE wisteria (Wisteria sinensis)

Blue Sapphire Wisteria (Wisteria sinensis 'Blue Sapphire') is a vigorous, deciduous woody vine known for its long, cascading chains of deeply fragrant, violet-blue flowers. Ideal for arbors and trellises, it typically blooms in late spring and requires a very sturdy support structure to accommodate its fast growth.

Key Plant Characteristics

• Flower Color & Fragrance: Cascading racemes of deep blue-violet blooms with white overtones and a distinct, sweet fragrance.
• Bloom Time: Late spring to early summer.
• Size: Can reach heights of 8–10 m (25–30 ft) with a wide spread.
• Hardiness Zones: USDA Zones 4 to 9.

Essential Care & Growth Guide

• Sunlight: Prefers full sun (at least 6 hours of direct sunlight daily) for optimal blooming
• Soil: Grows best in average to moist, well-drained soil.
• Support: Requires a heavy-duty, rigid support system (like a steel or robust wooden pergola or arbor) to bear the weight of its thick, twining stems.
• Pruning: Prune twice a year for the best flower production. Cut back long, wispy shoots after the spring/early summer bloom to encourage bud development.
• Fertilizing: Avoid heavy fertilization, as excess nitrogen can cause the plant to produce lush green leaves at the expense of its flowers.