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Black Knight Butterfly Bush

Pam's Picks
A true butterfly magnet! This lovely, fragrant bush also attracts hummingbirds.

*images shown are of mature plants

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Black Knight Butterfly Bush

The Butterfly and Hummingbird Feeder You’ll Never Have to Refill

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• Attracts butterflies like no other plant 
• Drought tolerant 
• Long blooming period 

Your morning coffee time will never be the same! 

Bright, fragrant blooms draw in hoards of butterflies and hummingbirds. 

Plant the butterfly bush in groupings or in rows for a summer long spectacular show. 

Butterfly Bush works in the perennial garden and as an accent plant. 

This deciduous shrub highlights any garden. The large, elongated clusters of blooms provide ample nectar for all varieties of butterflies and hummingbirds. 

In the heat of the summer, this star shines. A profusion of flowers from mid-July until the first frost reward you month after month with uninterrupted blooming. 

Your well developed 3 gallon container plant will reach its mature height of 4-6 ft. the first year. 

This Butterfly Bush is highly adaptable and will tolerate most growing conditions, including clay and sandy soils. It’s a drought tolerant plant that requires little water once established. 

Your Butterfly Bush will give you year after year of enjoyment.

Growing Zones: 5-9

Mature Height: 4-6 ft.
Mature Width: 4-6 ft.
Sunlight: Full - Partial
Soil Conditions: Very Adaptable
Drought Tolerance: Great
Botanical Name: Buddleia 'Black Knight'
Does not ship to: AZ, OR, WA
Growing Zones 5-9
This plant is generally recommended for zones: 5-9
(blue area above)

You are in Growing Zone:

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Why Buy from Fast Growing Trees?

Save Money

Save thousands by shopping in the convenience of your own home instead of paying a landscaper for trees that struggle.

Tree to Door

Receive well developed, large trees and shrubs that thrive in your area.  Varieties that are easy to grow, long lived, and trouble free.  Your plants are clearly marked for size, pruned to a nice pleasing shape, and are delivered right to your doorstep.

No Chemicals

We shun growth regulators and other chemicals that make plants look good in the stores but struggle to survive once planted.

Large Size

Some nurseries charge you for a taller tree then chop 1/3 off, so it will fit in a shorter box. This saves them on shipping but can harm your tree and make you wait longer for it to grow back.

Can I Plant Now?

Yes... Your Black Knight Butterfly Bush can be planted any time of year... even Winter. Roots will continue to grow on warm days, giving your tree a head-start for Spring. 

How do I Request a Different Ship Date?

Call us at 888-504-2001, email us or enter your requested ship date in our shopping cart next to the billing information section. 

Additional Info for Those Who Love to Read:

Orders are occasionally delayed if we see really bad weather approaching, or if we encounter unusual circumstances. A small number of our plants show a specific release date. If you purchase one of these and would like your other items sooner, just let us know. 
Amount of Order Shipping Charge
Less than $15 $8.95
$15.00-$23.99 $11.95
$24.00-$39.99 $14.95
$40.00-$79.99 $18.95
$80.00-$98.99 $23.95
$99+ 28%

It's Easy to Plant your Black Knight Butterfly Bush

Step 1 - Dig Your Hole

Select a site with full to partial sun and moist or well drained soil for your Black Knight Butterfly Bush.

If you're planting a hedge, mark out a visual guide by placing stakes five to six feet apart and looping string around them. Plant the where the stakes are and they'll grow together to make a dense privacy screen.

First, dig each hole so that it is just shallower than the root ball and at least twice the width.

Then loosen the soil in the planting hole so the roots can easily break through.

Use your shovel or try dragging the points of a pitch fork along the sides and bottom of the hole.

Step 2 - Place Your Plant

Next, separate the roots of your Black Knight Butterfly Bush gently with your fingers and position them downward in the hole.

The top of the root flare, where the roots end and the trunk begins, should be about an inch above the surrounding soil.

Then make sure the plant is exactly vertical in the hole.

To make it just right, use a level.

Step 3 - Backfill Your Hole

As you backfill the hole, apply water to remove air pockets.

Remove debris like stones and grass and completely break up any dirt clumps.

Water your Black Knight Butterfly Bush again after the transplant is complete.

To help retain some of that moisture, it's recommended that you place mulch around each plant to a depth of 2"-3" up to but not touching the trunk. Organic mulches such as wood chips also help to better soil structure as they decompose.

Average customer rating:

Most useful customer reviews:
By: Tina Yeargain
Lovely bushes, came quick, healthy, planted 2 weeks ago, they have beautiful purple blooms already. We want 3 more... Thanks!

By: Liz Woods
I bought one of these last spring and planted it in early June. It grew and had beautiful, beautiful flowers on it! I was looking forward to it blooming again this year, but unfortunately my new lawn service guy cut the bush right to the ground today! I will have to buy another one ASAP to get it in the ground for this season!

By: Ken
My plant arrived totally dried out no one drop of water . I plant as per instructions but so far plant does not look so good ,leaves drying out and curling up . I watch and see what happens.

By: Lynnette
I bought this plant in the spring and it is not exactly what I was thinking. I thought it would grow straight up, but does not. It is very unruly and is staying close to the ground - no trunk yet and now it is August. I do have more branches and it has stayed healthy despite being moved once already, but this looks more like a weed than a bush. It has nice purple flowering ends, but not 1 butterfly has been seen on it. I live in IL so maybe that has something to do with it? I have seen bees on it, but I bought for butterflies. I wish I would have purchased this locally where the bushes grow straight up and I saw butterflies on them. Oh well.

By: Scott Coya
I ordered two of these, one died and the other grew at a fantastic rate. Planted it in late April and it was about 3 ft high in some places by mid-July. Really beautiful and the butterflies practically swarmed it.

By: Deborah Roth
Our Butterfly Bush was packaged well and arrived safely. There were actually three bushes in that pot and I planted one in my 'secret garden,' one in the front yard and gave one to my neighbor. All three have responded well to their new environment and produced beautiful deep purple blooms within a very short time which I enjoyed tremendously. It seems every time I sat down and enjoyed the blooms, I saw at least one butterfly. You weren't kidding! Thank you so much for the wonderful addition to our home.

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Browse 6 questions and 11 answers
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Will Milkweed plants grow in zone 10?
Lakelady58 on Jul 9, 2014
Best Answer: Zone 10 gets a little too hot for the Black Knight Butterfly Bush.
Reply · Allison BStaff on Jul 10, 2014
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Does this take full sun?
A shopper on Jun 7, 2014
Best Answer: I purchased two. One was placed in an area where it had limited sunlight exposure and did very well. The other was placed in a different location with full North Carolina sun all day. It did not do nearly as well. I have had butterfly bushes before that did very well in the sun. Both are now emerging into their second season. Looking forward to how they will respond to their surroundings without the trauma of initial transplantation.
Reply · John R on Jun 7, 2014
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do these bushes come back from the ground or the plant think mine died but are shoots at the base?
sandy w on Jun 15, 2014
Best Answer: If it still has shoots coming from the base, it's not completely dead. I would make sure that the roots are covered and that there are no air pockets around the roots, and give it water. Maybe you could buy some of the special planting mix that fast-growing-trees.com sells? It has lots of nutrients that growing butterfly bushes need.
Reply · Elizabeth W on Jun 15, 2014
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As the flowers are done, should they be cut off?
A shopper on Jul 11, 2014
Best Answer: No, leave things natural and you will be pleased.
Also, I would not recommend doing business with this company.
Reply · Glenn G on Jul 11, 2014
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I am seeking Buddleja Todaras (LAVENDAR Nectar Bush) Is this the correct one? I'm concerned that Black Knight would be a dark purple which I would not want. I am not a wholesaler; can I still purchase from you? Do you have any outlets in San Diego County?
Pat S on Jun 7, 2014
Best Answer: We carry the Buddleia davidii 'Black Knight' bush and it has darker blooms. We are located in SC.
Reply · Allison BStaff on Jun 13, 2014
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fertilizer for butterfly bush?
A shopper on Jun 6, 2014
Best Answer: The Black Knight Butterfly Bush generally doesn't need any fertilizer, If your lawn is missing some nutrients or you would like to give your bush a bush use 10-10-10.
Reply · Allison BStaff on Jun 13, 2014
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