A hardy, clump-forming perennial with finely divided, grey-green foliage and large, thistle-like, deep blue flowers. Centaurea dealbata adds vibrant colour and architectural interest to borders, rock gardens, and naturalistic plantings, and is valued for its long flowering season.
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Exposure: Moderately wind-tolerant; tolerates coastal conditions if soil is well-drained.
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Size: Typically 45–60 cm (18–24 in) high and 30–45 cm (12–18 in) spread.
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Soil: Prefers well-drained, moderately fertile soil; tolerates poor, dry soils.
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Sun: Full sun for best flowering and compact growth.
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Flowering Time: Late spring to summer (May–July).
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Wildlife Benefits: Flowers attract bees, butterflies, and other pollinators, providing a long-lasting nectar source.
