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Icon Quality plants guaranteed to arrive healthy and ready to thrive.
Icon All plants are grown and shipped in containers with soil. We DO NOT send you bareroot plants.

Butterfly Bush - Black Knight

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Butterfly Bush 'Black Knight'

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Purple Butterfly Bush, Buddleia 'Black Knight', sports deep purple, nearly black flower spikes. This species is adaptable to many soil conditions but does require full sun and moderate maintenance. Cut Buddleia Black Knight half way back in late winter to keep it from getting too long and gangly. Occasional dead-heading is recommended after it starts to bloom in summer. This practice will keep the gorgeous flowers coming through fall. It will be pleasant task to do, as the fragrance from the Purple Butterfly Bush will be just as enjoyable to you as it is to the many butterflies it attracts.

Botanical Name Buddleia davidii 'Black Knight'
Zone 5, 6, 7, 8, 9
Mature Height 4-6 ft.
Mature Spread 4-5 ft.
Sun Exposure Full Sun
Growth Rate Fast
Flower Color Purple, Dark Purple
Foliage Color Silvery Green
Flowering Date Summer
Form Upright
Soil Widely Adaptable
Moisture Average
Maintenance Moderate
Uses Beds and Borders, Cut Flower, Accent
Characteristics Deer Resistant, Showy Flowers, Fragrant, Attracts Butterflies, Frost Tolerant, Hardy, Pest Resitant

When will my order ship?

We do our best to ship your order as soon as possible. Orders generally ship out within 1-3 business days.

How will my order be shipped?

Your order will be shipped either FedEx Ground or USPS Priority Mail, depending on the size of the order. Once shipped, your order will arrive in 2-5 business days.

How much does shipping cost?

All orders over $69 ship free. Orders under $69 ship for a flat rate of $11.99.

Do you guarantee your plants?

Yes. If, in the rare case your plants are damaged upon arrival, just contact us within 7 days and a full refund or exchange will be issued for those plants.

Will this plant grow where I live?

The hardiness zones that each plant will grow in are listed in the product description. Please make sure that the plants are rated for the zone you live in. If you don't know what zone you are in, check out our zone map to find out.

If I order now, can I delay shipping for sometime in the future?

Sure. After placing your order, just send us an email with your order number and the date you would like your order delivered.

Do you ship this time of year?

Yes. Our plants are very well established and shipped with the container and soil intact. This allows us to ship the plants year round without compromising the health of the plants. In cases of extreme weather, we may choose to delay shipment for a short period in order to protect your order from the harsh conditions. If this happens, you will be notified immediately with the expected shipping date.

Do you have a catalog?

No. In an effort to reduce the amount of paper we use, we have decided to make our catalog available exclusively online.

All of our plants are container grown and shipped with the soil and roots fully intact. We DO NOT ship your plants bareroot. Being shipped as a containered plant greatly reduces the risk of the plant not surving the transit to your home. We guarantee that you will receive a healthy plant that is ready to thrive! We offer various different sizes of potted plants. The size available for each variety is indicated in the plant title above.


Our Pot sizes include:

3.5" Pot - 3.5" wide by 3.5" tall

1 Gallon Container - 6" wide by 7" tall

2 Gallon Container - 8 1/2" wide by 8 1/2" tall