Quick Facts

• Mature size: Approx. 700–900mm high x 400–600mm wide

• Position: Full sun

• Foliage: Blue-green, lance-shaped leaves

• Flowering: Late spring through summer

• Flower colour: Pure white, star-shaped flowers in airy clusters

• Climate tolerance: Heat, frost, and drought-tolerant

• Water needs: Low once established

• Maintenance: Low

Why You’ll Love It

Centranthus ruber ‘Alba’ is a graceful, long-flowering perennial valued for its clouds of pure white blooms that float above blue-green foliage. Flowering from late spring through summer, it brings a light, airy quality to borders, gravel gardens, and naturalistic plantings. Tough and adaptable, this plant thrives in poor, well-drained soils where many others struggle, making it an excellent choice for low-maintenance gardens.

Planting & Care Tips

• Plant in full sun for best flowering

• Prefers well-drained soil; ideal for gravel and free-draining sites

• Water sparingly once established

• Deadhead regularly to prolong flowering

• Cut back after flowering or lightly in late winter to refresh growth

• Can self-seed in suitable conditions; remove spent flowers if this is not desired