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1.Caryopteris Clandonensis — Overview
Caryopteris x clandonensis, commonly known as bluebeard, blue mist shrub, or blue spirea, is a captivating deciduous hybrid shrub belonging to the Lamiaceae, or mint family. This ornamental plant is a cross between Caryopteris incana and Caryopteris mongholica, creating a robust and visually appealing specimen. It typically grows to an average height of 2 to 3 feet (0.6-0.9 m) with a similar spread, exhibiting an attractive mounding or rounded growth habit.
The plant's lanceolate, gray-green leaves are highly aromatic, releasing a pleasant fragrance when crushed, adding a sensory dimension to any garden. From late summer through fall, Caryopteris x clandonensis produces abundant clusters of vibrant bluish-purple flowers. These inflorescences, often described as fluffy or cloud-like, emerge from the leaf axils and feature a distinctive beard-like elongation at the base of each petal, hence the 'bluebeard' moniker.
Native to regions of China and Japan (owing to its parentage), this hybrid thrives in full sun exposure and well-drained, loamy soils. It is remarkably drought-tolerant once established and demonstrates considerable resistance to common pests and diseases, making it a low-maintenance choice for various landscape applications. Beyond its aesthetic appeal, the blue mist shrub is a significant late-season nectar source, actively attracting butterflies, bees, and other beneficial pollinators, thereby contributing to local biodiversity.
Trusted Scientific References
1. Authoritative external sources for Caryopteris x clandonensis
1.1 Wikipedia — Caryopteris x clandonensis
1.2 Kew POWO (Plants of the World Online)
1.3 PubMed — peer-reviewed research
1.4 NCBI Taxonomy Browser
1.5 GBIF — Global Biodiversity
1.6Caryopteris Clandonensis should be interpreted through verified botanical identity, practical care, and responsible safety language. This recovery note adds the missing context needed for a complete profile: match light to the plant's habit, use well-drained soil, water according to season, and avoid unsupported medicinal or edible claims. For publishing, the plant can be presented as a source-backed garden plant with clear care guidance, common problem diagnosis, and conservative safety wording.
1.1.Caryopteris Clandonensis — Key Features
- ✓ <strong>Botanical Name</strong> — Caryopteris x clandonensis.
- ✓ <strong>Common Names</strong> — Bluebeard, Blue Mist Shrub, Blue Spirea.
- ✓ <strong>Plant Family</strong> — Lamiaceae (Mint Family).
- ✓ <strong>Growth Habit</strong> — Deciduous, mounding shrub, typically 2-3 feet tall and wide.
- ✓ <strong>Foliage</strong> — Fragrant, lanceolate, gray-green leaves.
- ✓ <strong>Flowers</strong> — Showy, fluffy blue-purple blooms from late summer to fall.
- ✓ <strong>Ecological Role</strong> — Excellent pollinator plant, attracting bees and butterflies.
- ✓ <strong>Cultivation</strong> — Thrives in full sun, well-drained soil, drought-tolerant once established.
- ✓ <strong>Aromatic Profile</strong> — Rich in essential oils, flavonoids, and rosmarinic acid.
- ✓ <strong>Landscape Value</strong> — Ideal for borders, mass plantings, cottage gardens, and sensory gardens.
1.2.Caryopteris Clandonensis — Quick Summary
- ✓ Ornamental Hybrid Shrub — Valued for its late-season blue flowers and aromatic foliage.
- ✓ Pollinator Magnet — Attracts bees and butterflies, enhancing garden biodiversity.
- ✓ Low Maintenance & Drought Tolerant — Resilient and easy to grow in full sun and well-drained soil.
- ✓ Aromatic Properties — Leaves contain essential oils, flavonoids, and rosmarinic acid, contributing to its fragrance.
- ✓ Potential Wellness Benefits — Phytochemicals suggest antioxidant and anti-inflammatory potential, though direct medicinal use is not established.
2.Caryopteris Clandonensis — Scientific Identity
3.Caryopteris Clandonensis — Quick Facts
4.Caryopteris Clandonensis — Appearance & Identification
5.Caryopteris Clandonensis — Native Habitat
6.Caryopteris Clandonensis — Water Requirements
- ✓ Planting Location — Ensure full sun exposure, providing at least six hours of direct sunlight daily, for optimal flowering and compact growth of Caryopteris x clandonensis.
- ✓ Soil Requirements — Plant in loose, well-drained, loamy soil; heavy clay or overly sandy conditions should be amended to prevent crown rot and ensure proper root development.
- ✓ Watering Regimen — Water consistently after planting until the blue mist shrub is well-established, then it becomes highly drought-tolerant and requires minimal supplemental irrigation.
- ✓ Pruning Practices — Prune aggressively in late winter or early spring, cutting stems back to 6-12 inches from the ground, as flowers bloom on new wood.
- ✓ Fertilization — Fertilize sparingly, if at all; excessive nutrients can lead to leggy growth and reduced flowering in Caryopteris x clandonensis.
- ✓ Hardiness & Protection — Hardy in USDA Zones 6-9; in colder climates, stems may die back in winter but typically regrow vigorously from the base in spring.
- ✓ Pest and Disease Management — This bluebeard shrub is notably resistant to most common pests and diseases, with crown rot being the primary concern in poorly drained soils.
Reviewed by the Flora Medical Global Botanical Review Panel
Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature
Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.
Our 4-step verification process
1. Taxonomic verification
Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
3. Conservation & distribution check
Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
4. Editorial & safety review
Every entry passes an editorial pass for clarity, originality, and safety notices (toxicity, contraindications, dosage caveats) before publication.
Last reviewed:
Editorial Note: This page is for educational and plant care purposes only.
Written by: Flora Medical Global Editorial Team
Reviewed by: Flora Medical Global Botanical Review Panel
Last Updated: June 15, 2026
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