Black Knight Butterfly Bush

Buddleia davidii 'Black Knight'

$34⁹⁹

In Stock
Stay Protected with Plant Sentry ™

Plant Size

Quart Container #3 Container

Product variants

Plant Sentry™

Delivery and Shipping

Understanding Plant Options

Nature Hills offers plants in two main formats:

Container Plants: Grown in pots with soil, sized by container volume and plant age
Bare Root Plants: Dormant plants without soil, sized by height measurements

Container Plant Sizes

Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.

Young Plants (6 months to 18 months old)

Container Size	Actual Volume	Metric Equivalent
2" x 2" x 3"	0.18 - 0.21 dry quarts	0.20 - 0.23 dry liters
4" Container	0.31 - 0.87 dry quarts	0.35 - 0.96 dry liters
4.5" Container	0.65 dry quarts	0.72 dry liters
6" Container	1.4 dry quarts	1.59 dry liters
1 Quart	1 dry quart	1.1 dry liters
5.5" Container	1.89 dry quarts	2.08 dry liters

Established Plants (18 months to 2.5 years old)

Container Size	Actual Volume	Metric Equivalent
2 Quart	2 dry quarts	2.2 dry liters
#1 Container	2.26 - 3.73 dry quarts	2.49 - 4.11 dry liters
5" x 5" x 12"	3.5 - 4.3 dry quarts	3.85 - 4.74 dry liters

Mature Plants (2-4 years old)

Container Size	Actual Volume	Metric Equivalent
#2 Container	1.19 - 1.76 dry gallons	5.24 - 7.75 dry liters
#3 Container	2.15 - 2.76 dry gallons	8.14 - 12.16 dry liters

Large Plants (3-5 years old)

Container Size	Actual Volume	Metric Equivalent
#5 Container	2.92 - 4.62 dry gallons	12.86 - 20.35 dry liters
#6 Container	5.25 - 6.01 dry gallons	23.12 - 26.42 dry liters
#7 Container	5.98 - 6.53 dry gallons	26.34 - 28.76 dry liters

Bare Root Plants

Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.

Common Sizes:

Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
Shrubs & Perennials: 1 foot, 18 inches, 2 feet

Important Notes

Container Volume Specifications

Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents

Growing Conditions

Plant size can vary based on variety and growing conditions
Container size helps indicate plant maturity and establishment level
Larger containers generally mean more established root systems and faster landscape establishment

Seasonal Availability

Bare root plants are available seasonally when dormant
Container plants are available throughout the growing season
Specific varieties may have limited availability in certain sizes

Questions?

For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.

Plant Highlights

Black Knight Butterfly Bush highlights at a glance!

Specifications

Brand

Nature Hills' Choice
Botanical Name

Buddleia davidii 'Black Knight'
Growing Zones

5-9
Mature Height

6 - 8 feet
Mature Spread

3 - 5 feet
Sun Exposure

Full Sun
Moisture

Moderate
Soil

Well Drained
Growth Rate

Fast
Pollinator Friendly

Yes
Pollinator Required

No
Fragrant

Yes
Pruning Time

Early Spring
Bloom Period

Summer, Fall

Growing Zones 5-9

Find Your Growing Zone!

The Black Knight Butterfly Bush, (Buddleia davidii 'Black Knight'), is more like Prince Charming when it comes to butterflies. Butterflies can't resist the allure and charm of these fragrant and mesmerizing blooms. This plant offers spectacular spikes of flowers that will bring all the butterflies and hummingbirds to your yard. This impressive deciduous beauty will capture your heart and inspire your creativity.

As its name implies, the Butterfly Bush is the butterfly whisperer of the flower world. It entices butterflies to stop by for a sip of its sweet and fragrant nectar. This sweet-scented plant brings the biggest gathering of butterflies in the afternoon when its honey-scented nectar sweetens in the sun. The butterflies will need to make room for hummingbirds who enjoy this sweet treat as well.

From the deep, almost black-purple color of muscadine grapes to the vibrant pop of purple, the Black Knight Butterfly Bush produces some of the most dramatic flowers you'll find! Each with a tiny orange center deep inside the throat of each trumpet that densely clusters along the bottlebrush like spikes of flowerheads. These flowers are sure to add a sense of drama to your summer and into fall when they bloom.

Planting and Application:

Plant one of these as a floral privacy hedge near your pool or reading garden. One of these would steal the show in your butterfly garden. At maturity, these are sizeable shrubs that won't block the view entirely, but still leave a magnificent impression on the landscape! Use as a tall focal point or specimen plant and anchor throughout garden beds, borders and cut flower gardens!

If you're looking for a ravishing show of blooms, butterflies and hummingbirds, this is the plant for you. It's breathtaking when in blooms and won't take all your time when it comes to care. They're perfect for Rock Gardens and pollinator beds or en masse and rows for light and airy screening!

Dramatic Spikes of Rich Dark-Violet Flowers
Light Airy Branching & Gray-Green Foliage
Butterfly & Hummingbird Magnet
Sweetly Scented Fragrance
Great for a Breezy Privacy Screen

#ProPlantTips for Care:

This beauty is easy to grow! All you need to do is find a sunny spot and plant this perennial shrub in well-drained, moderately moist soil. It grows vigorously. It's also pest, deer, and rabbit resistant. It blooms on new growth, so don't forget to prune it to the ground in the early spring before you see new growth.

Full Sun
Moderate Moisture
Well-Drained Soil
Prune to Ground in Spring
Fast Growing

Butterflies galore on a dramatically dark-hued flowering shrub? Black Knight Butterfly Bush has all this and more! Order today at NatureHills.com!

Pleased with all plants

Pleased with all plants, packaging was outstanding

Hi Thomas - Thank you for all your glowing reviews! Please be sure to send us some photos of all your butterfly bushes along with all the butterflies that will find joy in the beautiful landscape you are providing for them! Happy Planting - Nature Hills Customer Support

Came well packed and healthy

Came well packed and healthy. Transplanted easily and have taken to their new environment.

Hi David! Thank you for the review! We are so glad to hear that your Black Knight Butterfly Bush arrived in good condition and is thriving in its new home. As a gardening tip, make sure to deadhead spent flowers to encourage new growth and blooms. Happy gardening! -Nature Hills Customer Service

A Beautiful Plant

I have tried five times to have success with the Black Knight. This time, I think it will work. I got good advice from a Nature Hills representative, and the plant itself came bigger and healthier than I expected. Right now it seems very happy. I'll do my best to keep it that way, growing and thriving.

Dear Mel,

Thank you for your fantastic review of the Black Knight Butterfly Bush! We are so pleased to hear that your previous attempts haven't discouraged you and that this time, with some good advice and a healthy plant from Nature Hills, you're seeing such great success. It's truly rewarding to know that your 'Black Knight' is happy, growing, and thriving.

The 'Black Knight' Butterfly Bush (Buddleia davidii 'Black Knight') is a truly stunning plant, beloved for its deep purple, fragrant blooms that attract pollinators. We're glad to hear that the advice you received was helpful in ensuring its establishment and growth. Proper planting, adequate sunlight, and good drainage are key for these beautiful shrubs.

To greener days ahead, Nature Hills Customer Care & Plant Support

now have 3 of different colord

Arrived in perfect shape trimmed and ready to be planted. It is thriving in my garden now

Dear Pat O.,

Thank you so much for sharing your wonderful experience with us! We’re thrilled to hear that your plants arrived in perfect condition and are now thriving in your garden. It sounds like your garden must be bursting with beautiful colors having three different ones growing so well. If you ever have questions about care tips, pruning, or even adding complementary plant varieties, don’t hesitate to reach out—we’re always here to help your garden flourish.

Wishing you happy planting,
The Nature Hills Plant Experts

now have 3 of different colord

Arrived in perfect shape trimmed and ready to be planted. It is thriving in my garden now

Hi Patricia,

Thank you so much for sharing your wonderful update! We're thrilled to hear that your new plants arrived healthy, well-trimmed, and ready to flourish—and even more delighted that all three are thriving in your garden. It sounds like you’re creating a lovely, colorful landscape! If you ever want tips on care or ideas to enhance your garden's beauty even further, don’t hesitate to reach out. We're always here to support your green thumb journey.

Wishing you happy planting,
The Nature Hills Plant Experts