Caryopteris Longwood Blue #3
Caryopteris × clandonensis ‘Longwood Blue’ (Longwood Blue Bluebeard) is a compact, deciduous shrub valued for its long-lasting display of rich, deep blue flowers that bloom from late summer into early fall. It forms a tidy, rounded to slightly mounded shape with aromatic, gray-green to silvery foliage that provides soft texture and contrast throughout the growing season. Dense clusters of vivid cobalt-blue blossoms cover the upper stems, creating a colorful haze that attracts bees, butterflies, and other pollinators when few other shrubs are flowering. Heat and drought tolerant once established, ‘Longwood Blue’ is an easy-care choice for sunny borders, mass plantings, and pollinator or cottage gardens, offering reliable late-season color and a neat, manageable size.
Hardiness Zones:
USDA Zones 5–9Mature Size:
Typically 2–3 ft tall and 2–3 ft wide
(compact, rounded to slightly mounded form)Light Requirements:
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Full sun (at least 6+ hours daily)
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Best flowering and strongest stems in full sun
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Too much shade → fewer blooms and floppy growth
Water Requirements:
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Low to moderate water needs
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Prefers well-drained soil
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Water regularly during establishment
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Once established, drought tolerant and sensitive to overwatering or soggy soil
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