Bolusanthus speciosus

Bolusanthus speciosus, commonly known as Tree Wisteria, is a deciduous, ornamental tree native to Southern Africa. It is prized for its cascading clusters of violet-blue flowers, graceful weeping foliage, and drought tolerance. This low-maintenance and water-wise species is perfect for xeriscapes, wildlife-friendly gardens, and urban landscaping.

Key Features:

• Botanical Name: Bolusanthus speciosus
• Common Names: Tree Wisteria, African Wisteria Tree
• Family: Fabaceae
• Native Region: Southern Africa (Botswana, Namibia, South Africa, Zimbabwe, Mozambique)
• Growth Rate: Moderate to fast
• Mature Size: Up to 7 meters (23 feet) tall, with a spreading, weeping canopy
• Leaves: Bright green, compound, forming a soft, feathery appearance
• Flowers: Hanging clusters of violet-blue, pea-like flowers, resembling wisteria
• Fruits: Long, slender pods, typical of legumes
• Season: Blooms in spring to early summer, attracting pollinators

Growing Conditions:

• Sun Exposure: Full sun
• Soil Requirements: Well-draining, sandy, or loamy soil
• Watering Needs: Drought-tolerant, requires minimal watering once established
• Temperature Tolerance: Mild frost-hardy, benefits from protection in severe cold
• Humidity: Prefers dry to moderate humidity
• Lifespan: Long-lived, forming a stunning shade tree over time

Landscaping & Uses:

✅ Perfect for ornamental gardens, xeriscapes, and avenues
✅ Ideal for urban landscaping due to non-invasive roots
✅ Drought-resistant and low-maintenance
✅ Attracts bees, butterflies, and pollinators
✅ Highly prized for its cascading wisteria-like flowers