Black Knight Butterfly Bush is a well branching shrub with a spreading, arching habit that can reach 6-8’ tall if not cut back in late winter. Black Knight Butterfly Bush has willowy grey-green leaves and large fragrant spike-like clusters of deep, nearly black, purple flowers that bloom in summer attracting butterflies. Removing spent flowers can encourage continued blooms until frost. Best performance in sunny well-drained areas.
Type:
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Shrub
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Origins:
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China
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Height:
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6’ - 8’
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Spread:
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3’ - 5’
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Spacing:
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4’
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USDA Hardiness Zone:
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5 - 9
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Culture:
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Full Sun
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Bloom Color:
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Purple
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Season of Interest:
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Summer, Fall
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MAINTENANCE NEEDS: Low maintenance plant. Intolerant of wet soils. Watch for spider mites and nematodes.
LANDSCAPE USES: Accents or Group Plantings, Borders, Wildlife Gardens, Rock Gardens, Foundation Plantings, Hedges, and Containers.
COMPANION PLANTS: Russian Sage, Daylily, Coneflower
IMAGES: Ptelea, Buddleja davidii 'Black Knight' 2, CC BY-SA 3.0, (2) User:BotBln, Buddleja davidii BlackKnight BotGardBln07122011A, CC BY-SA 3.0, (3) User:BotBln, Buddleja davidii BlackKnight BotGardBln07122011C, CC BY-SA 3.0, (4) Raffi Kojian, Gardenology.org-IMG 6539 hunt10jun, CC BY-SA 3.0
*As plants have ranges in appearance they may not appear as the images shown