Buddleia davidii 'Black Knight'
'Black Knight' features dramatic, elongated flower spikes of deep purple—so dark they appear nearly black. Its fragrant blooms appear continuously from summer until frost, creating a striking focal point in the garden.
This sun-loving shrub attracts butterflies, bees, and hummingbirds while thriving in poor, well-drained soil. Drought tolerant and low maintenance, it is perfect for borders, pollinator gardens, and cottage landscapes.
- � Deep purple, almost black flower spikes
- � Blooms summer through frost
- � Attracts butterflies, bees & hummingbirds
- � Drought & heat tolerant
- � Mature Size: 48–72 in. tall, 48–72 in. wide
- � Great for borders, wildlife gardens & cut flowers
Note: Butterfly bushes may arrive dormant in cooler months but will quickly thrive when planted in warm, sunny conditions.
Growing Zones: 5–9 outdoors

| Mature Height: | 48–72 in. |
| Sunlight: | Full Sun |
| Mature Width: | 48–72 in. |
| Botanical Name: | Buddleia davidii 'Black Knight' |
| Growth Rate: | Fast |
| Bloom Time: | Summer to Frost |
| Type: | Flowering Shrub (Butterfly Bush) |
FAQ's
Does 'Black Knight' bloom all summer?
Yes, it blooms continuously from summer until the first frost.
Is it good for pollinators?
Absolutely. Butterflies, bees, and hummingbirds love its nectar-rich blooms.
Can it handle drought?
Yes, once established, it is drought tolerant and thrives in dry, well-drained soils.
Can it be grown in pots?
It can, but due to its larger mature size, it is better suited for garden beds and borders.
Is it deer resistant?
Yes, butterfly bushes are generally avoided by deer.