Black Knight Butterfly Bushes Have Fragrant Purple Blooms!
This beauty will be a pollinator magnet in your garden.
The Buddleia davidii Black Knight Butterfly Bush is a sight for the eyes planted in any butterfly garden landscape! As long as you have a sunny planting spot this flowering perennial shrub will flourish with big purple flower heads whose fragrance will attract butterflies and other pollinators like bees or hummingbirds to your landscape.
This flowering butterfly bush plant features very dark purple conical flower heads that have a bloom time from early to mid-summer to early fall at their prime. You can start seeing the clusters of flowers as early as May or June and they will last all the way until September. They will appear on a long shrub-like spike that surrounds the circumference of the plant.
Contrasting the deep purple flower spikes on the butterfly weed is olive green foliage that will remain on the plant until winter before dying back. It is famous for its bushy growing habit, honey-scented fragrant flowers, and robust growth. The fast growth rate is perfect for shrub borders, foundation plantings, or specimen plants.
The stunning flowering shrub is rabbit and deer-resistant and tolerant of clay soils once established. It is extremely low maintenance and drought tolerant. Once planted you can set it and forget it besides the occasional watering.
Create a Pollinator Paradise With the Black Knight Butterfly Bush
The Black Knight Butterfly Bush brings dramatic color and movement to any outdoor space, making it an excellent choice for gardeners who want a bold, fragrant, and wildlife-friendly focal point. With its rich color and sweet fragrance, this shrub brings life, texture, and seasonal impact wherever it’s planted.
- Pollinator gardens where butterflies, bees, and hummingbirds can enjoy its honey-scented blooms
- Shrub borders or mixed perennial beds needing height, movement, and late-summer color
- Foundation plantings that benefit from its bushy, upright form and long bloom period
- Specimen or focal plant to showcase its deep purple flower spikes against green foliage
- Low-maintenance landscapes thanks to its drought tolerance and natural resistance to deer and rabbits
Black Knight Butterfly Bush Care
The purple Butterfly Bush size is up to 6-8 feet tall and 3-5 feet wide at full maturity. It will perform best in full sun and well-draining soil. It can tolerate partial sun to partial shade but foliage may become infrequent.
Grow the Buddleia Black Knight Butterfly Bush across the United States in USDA hardiness zones 5-9. In northern climate zones like 5 and 6 with colder winters, the deciduous shrub can die down to the ground in winter months in the manner of an herbaceous perennial. Do not fret – the cold-hardy root systems will stay intact and flush out in early spring.
Butterfly bush pruning will benefit the plant after the flowering period ends to help shape the shrub to your desired size. The green leaves can take heavy pruning. Do not prune once spring has arrived to avoid cutting off new flower buds. The best time of the year to prune is in winter.
You can even prune your plant into a butterfly bush tree! Deadhead butterfly bush and remove spent flower blossoms to encourage repeat blooms. Plant the butterfly-attracting bush somewhere the fragrance can be enjoyed!
- Plant in full sun and well-draining soil for the best bloom production; partial shade is tolerated but may reduce foliage density.
- Expect dieback in colder winters, but the hardy roots will resprout vigorously in spring.
- Prune in winter after flowering to shape the plant, remove damaged wood, and avoid cutting off new buds; heavy pruning is well-tolerated.
- Deadhead spent blooms regularly to encourage repeat flowering and maintain a tidy, fragrant display.
Buy Direct From the Grower!
Shop online at Perfect Plants and you are buying directly from our grow facility in Florida. The warm sun allows us to grow plants with superior root systems, critical for your plants to explode with new growth. From our farm to your door.
Buy the Black Knight Butterfly Bush for sale if you are looking for a purple bush that attracts butterflies and is easy to care for.
Check out all our Butterfly Bushes for sale.
*Disclaimer: This plant cannot ship to WA or OR due to state regulations
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Sunlight Full Sun / Partial Shade
Flower Color
Purple
Foliage Color
Green
Mature Width 3-5 ft
Mature Height 6-8 ft
Growing Zones 5, 6, 7, 8, 9
FAQs for Black Knight Butterfly Bush