Black Knight Butterfly Bush
Buddleja davidii 'Black Knight'
Description | Spectacular summer color from lightly fragrant, dark violet-purple flower spikes. A fast growing shrub that works well as a foundation shrub, an accent plant or as a background in borders. Slightly hardier than other varieties, but may die to ground in cold winter areas, emerging vigorously in spring. Deciduous. |
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Light | Full sun, Partial sun |
Watering | Water when top 3 inches of soil is dry. |
Blooms | Midsummer through fall |
Mature Size | Quickly reaches 6 to 8 ft. tall, 4 to 6 ft. wide. |
Deciduous/Evergreen | Deciduous |
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Special Features | Easy Care, Waterwise, Fast Growing |
Problems/Solutions | Deer Resistant, Rabbit Resistant |
Growth Rate | Fast |
Growth Habit | Vase-Shaped |
Flower Attributes | Flowers for Cutting, Fragrant, Showy Flowers |
Landscape Use | Border, Container |
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Flower Color | Purple |
Foliage Color | Gray-green |
Companion Plants | Bee Balm (Monarda); Coneflower (Echinacea); Butterfly Weed (Asclepias); Salvia (Salvia); Russian Sage (Perovskia) |
Care | Prefers well-drained, fertile soil. Water deeply, regularly during first growing season to establish extensive root system; reduce frequency once established. Clip spent flowers to promote continued bloom. May die to the ground in colder zones, regrowing from the roots in spring. Elsewhere, prune in late fall or early spring. Feed in spring. |
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This Plant's Growing Zones: 5-9

Your USDA Cold Hardiness Zone:
Your climate may be too cold for this plant
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About Us
We have been pioneers and craftsmen in the art of growing plants for nearly
100 years. Since our founding in Southern California by Harry E. Rosedale, Sr.
in 1926, we have been absolutely dedicated and obsessed with quality.
We have been pioneers and craftsmen in the art of growing plants for nearly 100 years. Since our founding in Southern California by Harry E. Rosedale, Sr. in 1926, we have been absolutely dedicated and obsessed with quality.