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Beginner
skill rating |
 |
4m
max. spread |
 |
4m
max. height |
 |
5-10 years
to maturity |
 |
2 hours care
per year |
Botanical name: Buddleja davidii 'Black Knight'
Other names: Butterfly bush 'Black Knight', Buddleia 'Black Knight', Buddlea 'Black Knight'
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Genus: Buddleja
Variety or cultivar: 'Black Knight' _ 'Black Knight' is a fast growing large deciduous shrub with arching branches and lance-shaped leaves, and panicles of deep-purple scented flowers.
Buddleia are nectar rich plants, which encourage benefical wildlife, such as ladybirds, lacewings and hoverflies into the garden
Buddleja davidii 'Black Knight' is: Deciduous
Flower: Dark-purple in Summer; Dark-purple in Autumn
Foliage: White, Grey-green in Summer
Fragrance: The flowers are sweetly fragrant.
Habit: Arching, Branching, Bushy, Irregular
Awards: RHS AGM (Award of Garden Merit)
Companion planting: Plant with other fast-growing plants for an instant garden
Plant with:
Elaeagnus x ebbingei 'Gilt Edge' (Oleaster 'Gilt Edge'), Nepeta x faassenii (Garden catmint), Lavatera x clementii 'Candy Floss' (Tree mallow 'Candy Floss'), Macleaya microcarpa 'Kelway's Coral Plume' (Plume poppy 'Kelway's Coral Plume'), Elaeagnus x ebbingei (Ebbinge's silverberry), Rosmarinus officinalis Prostratus Group (Rosemary Prostratus Group), Elaeagnus x ebbingei 'Viveleg' (Oleaster 'Viveleg'), Ceanothus x delileanus 'Topaze' (Californian lilac 'Topaze')
Buddleja davidii 'Black Knight' (Butterfly bush 'Black Knight') will reach a height of 4m and a spread of 4m after 5-10 years.
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Suggested uses: Cottage/Informal, Drought Tolerant, Beds and borders, Low Maintenance, Resistant to pollution, Wildflower, Instant
Cultivation: Tolerates many situations, but grows best in a sunny, well-drained situation.
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| Soil types: |
Chalky, Clay, Loamy, Sandy (will tolerate most soil types) |
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| Soil drainage: |
Moist but well-drained, Well-drained |
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| Soil pH: |
Acid, Alkaline, Neutral |
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| Light: |
Partial Shade, Full Sun |
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| Aspect: |
South, East, West |
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| Exposure: |
Exposed, Sheltered |
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| Hardiness: |
Hardy (H4) |
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