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Indian-bean tree
Catalpa Bignonioides
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Description
Native to central China, Heptacodium miconioides belongs to the Caprifoliaceae family. Recently introduced into cultivation in Europe, it is prized for its late flowering, sweet fragrance, and decorative bark.
Mature height: 3 to 4 metres.
Mature spread: 2 to 3 metres.
Habit: Bushy, often multi-stemmed if not trained.
Foliage type: Deciduous; glossy green turning purple in autumn.
Flowering period: Late August to October.
Flowers: Star-shaped, white, jasmine-scented; sepals turn deep pink after flowering.
Fruits: None; persistent decorative coloured sepals.
Hardiness: Exceptional, down to -25 °C and even -34 °C once established.
Position: Sun or partial shade.
Soil: Ordinary to slightly acidic, moist but well-drained.
Tolerance: Withstands strong winds and sea spray; adaptable to various soil conditions.
Season: Autumn or spring.
Preparation: Loosen soil, add compost in poor soils.
Spacing: Allow 2.5 to 3 metres spread at maturity.
At planting: Water regularly until established.
Mature: Low maintenance; water only during prolonged drought.
When: Late winter or after flowering if necessary.
Advice: Light pruning to maintain balanced shape; remove lower branches if a single trunk is desired.
Methods: Seed (slow and difficult), semi-ripe cuttings in summer recommended.
Ideal as a specimen to showcase its elegant habit and fragrant flowers, but can also be integrated into a shrub border or informal hedge. Its late flowering attracts pollinators, and its decorative bark adds winter interest.
Specimen, shrub border, informal flowering hedge, ornamental orchard.
Susceptibility: Very resistant to diseases and pests.
Prevention: No specific precautions required; very robust plant.
Plant in light, well-drained soil to avoid excess winter moisture, choose a sunny position for abundant flowering, mulch the base to retain soil moisture, prune moderately to shape the plant, and feed lightly in spring if needed to support vigour.
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