Albus White Valerian

Centranthus ruber 'Albus' (Centranthus ruber 'Albus') is a beautifully pure, white-flowering form of beloved Red Valerian — a tough, prolific, and wonderfully charming perennial that has graced cottage gardens, Mediterranean terraces, and dry stone walls for centuries with its effortless, self-sufficient flowering abundance. Where the species blazes in deep crimson-pink, 'Albus' delivers the same vigorous, free-flowering, almost recklessly generous character in pristine, fresh white — dense, rounded clusters of tiny, honey-scented white flowers produced in extraordinary profusion on branching, glaucous blue-green stems above a mound of smooth, attractive blue-green foliage that remains handsome and ornamentally valuable throughout the entire growing season. The overall effect is one of airy, naturalistic grace — a plant that looks entirely and immediately at home in the most formal as well as the most relaxed and naturalistic of garden settings.

This professional-grade 4" plant arrives with a healthy, well-established root system cultivated through professional horticultural practices — ready to establish quickly and launch into its characteristically prolific flowering. 'Albus' White Valerian positively thrives in the challenging conditions of dry walls, rocky slopes, gravel gardens, and coastal exposures where many ornamentals decline — its tough, self-sufficient, drought-tolerant nature making it one of the most rewarding and genuinely low-maintenance perennials available for naturalistic, Mediterranean-style, and low-water garden designs.

• Prolific Clouds of Honey-Scented White Flowers: Dense, rounded clusters of tiny, sweetly honey-scented white flowers are produced in extraordinary abundance across branching stems throughout a long spring and early summer season — a classic, refined cottage-garden display of effortless, naturalistic white-flowering beauty.
• Thrives in Poor, Dry, Challenging Conditions: One of the most drought-tolerant, lean-soil-adapted flowering perennials available — 'Albus' thrives in rocky, dry, alkaline, and coastal conditions that challenge most ornamentals, including dry stone walls, gravel gardens, and exposed seaside positions.
• Long Bloom Season with Deadhead Rebloom: Flowers prolifically from late spring through early summer, with a generous second flush of white bloom following prompt deadheading of spent flower clusters — significantly extending the white flowering display into the warmer months of the growing season.
• Butterfly & Pollinator Magnet: The honey-scented flower clusters are a generous, accessible nectar source that draws butterflies, bees, and beneficial insects in impressive numbers — one of the most reliably effective and beautiful pollinator-attracting perennials for dry, sunny garden conditions throughout the bloom season.
• Self-Seeding Naturalistic Character: Self-seeds freely in suitable well-drained conditions, naturalizing with genuine cottage-garden spontaneity into walls, gravel paths, rocky crevices, and border edges — a plant that makes itself beautifully at home with a charming, unforced generosity wherever conditions are to its liking.

These 4" healthy live plants thrive in full sun (6+ hours daily) with poor to average, sharply drained soil; performs best in lean, dry, even rocky or alkaline conditions — avoid rich soil and overwatering, which promote excessive vegetative growth at the expense of flowers. Water sparingly once established. USDA Hardiness Zones 5–8; mature height: 24–36 inches in bloom; spread: 18–24 inches. Bloom time: late spring through early summer, with rebloom following deadheading. Cut back hard after the first flush to encourage a strong second flowering and manage self-seeding.