Black Knight Butterfly Bush

Black Knight Butterfly Bush

9 reviews
  • Attracts pollinators to your garden

  • Bright bursts of color have street appeal

  • Low maintenance and drought tolerant

Regular price $39.95 Sale price $14.95 63% off

  • In stock, ready to ship
  • Inventory on the way
  • Ships in 2-3 business days (N/A to Pre Orders)
  • Buy direct from the grower
  • Family owned farm since 1980
  • You're good to grow this in Zone X

Order Black Knight Butterfly Bush Online

Beautiful Purple Blooms Invite All Kinds of Pollinators to 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 plant.


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. Plus, they’re deer resistant

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.

The flowering shrub is rabbit 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.

Shop the Black Knight Butterfly Bush for sale if you are looking for a purple bush that attracts butterflies and is easy to care for.

Plant the butterfly-attracting bush somewhere the fragrance can be enjoyed!

Check out all our Butterfly Bushes for sale.

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Botanical Name
Buddleia davidii 'Black Knight'

Full Sun / Partial Shade

Flower Color

Foliage Color

Mature Width
3-5 ft

Mature Height
6-8 ft

Growing Zones 5, 6, 7, 8, 9

Customer Reviews
4.3 Based on 9 Reviews
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Filter Reviews:
Kathy M.
United States United States

Butterfly Bush

Excellent service!! My bushes are beautiful!!


Perfect Plants Nursery

Thank you Kathy for your Black Knight Butterfly Bush order. Have a wonderful day!

John a.
United States United States

Gorgeous Butterfly bushes!

These little bushes arrived quickly and were very well-packed and protected from the throes of delivery. They are now planted in our yard and are beginning to produce the deepest purple flowers I have ever seen! Thank you for quality plants at good prices! We will be back!


Perfect Plants Nursery

Hi John and Helen. We are thrilled to hear how well everything is going with your Black Knight Butterfly Bush. Thank you for your continued support and hope to see you around again soon!

United States United States

Black Knight butterfly bush

The plant arrived in excellent condition and is doing well. Looking forward to swarms of butterflies as these bushes live up to their name. Also looking forward to the deep color.


Perfect Plants Nursery

Hi Anon, Thank you for leaving us a review on your purchase of our Black Knight Butterfly Bush. We're happy to know that you are satisfied with your plant! Best, Shirley

Sandi T.
United States United States

Gorgeous, breathtaking, perfect

I was like a kid at Christmas filled with excitement and wonder when I opened the perfectly packaged shipping box. The plants were incredible. So healthy. In my enthusiasm I planted them too soon and it is likely they are dead from shock and killing frost. I water and pray and cover at night and wait for that glorious beauty to return.


Perfect Plants Nursery

Hi Sandi. Thank you for sharing your feedback with us. We're happy to hear everything went well with your Black Knight Butterfly Bush delivery. Hope you both are doing well. Have a great day!


Leaves were a little wilty but perked up after soaking it with water for a few days. The butterflies already love it!


Perfect Plants Nursery

Thank you for your feedback and thrilled to hear your Black Knight Butterfly Bush recovered beautifully. See you around!

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