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Black Knight Butterfly Bush

$8995 $17995
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Your Plants are Guaranteed to Grow

Your plants are guaranteed to arrive happy & healthy with our 1 Year Warranty. Your order will arrive healthy and stay healthy while they adapt to your climate. If your tree arrives damaged or dies within 30 days, we'll replace it for free. If it dies after 30 days, but before 1 year, we will replace it for just 50% of the current price.

Free Shipping on All Orders

Relax... we've got you covered with free shipping on every order! We ship out so many huge plants, we've negotiated a low rate with our carriers... and we pass those savings on to you! Your plants will ship out the next business day... expertly packed so that your plants will arrive happy and healthy!

Is Now a Good Time to Plant?

Yes! Fall is one of the best times to plant!

Landscaping experts often recommend planting in fall instead of waiting until spring. Here’s why:

  • Cooler weather puts less stress on newly planted trees and shrubs.
  • Fall soil is still warm, which helps roots grow and get established.
  • Cooler temperatures mean less water is lost through the leaves, making it easier for plants to stay hydrated.
  • Even after top growth slows for winter, roots continue developing below ground.
  • Fall weather often brings more rain and less heat, making new plants easier to care for.
  • By spring, your plants already have a head start. Their established roots can support strong new leaves, branches, and flowers.
  • Trees planted in spring must establish their roots while also dealing with rising temperatures and summer heat.

Plant this fall, and your trees can spend the cooler months getting settled instead of waiting until spring to get started!

Planting your Black Knight Butterfly Bush

Planting Instructions for Black Knight Butterfly Bush

  1. Location and Soil Preparation:
    The Black Knight Butterfly Bush thrives in full sun, so select a planting site that gets at least 6–8 hours of direct sunlight per day. The soil should be well-draining and slightly alkaline to neutral (pH 6.0–7.5). If your soil is heavy clay or prone to waterlogging, amend it with compost or organic matter to improve drainage.
  2. Planting Process:

Care Instructions

  1. Watering: During the first growing season, water regularly, about 1 inch of water per week, to help establish the roots. Butterfly bushes are drought-tolerant once mature, but ensure the soil is not completely dry for long periods during hot spells.
  2. Fertilization: Black Knight Butterfly Bushes don't require heavy feeding. A balanced, slow-release fertilizer applied in early spring can support growth, but too much fertilizer can reduce flowering. Organic compost mixed into the soil each spring also works well.
  3. Monitoring for Issues: Keep an eye out for common issues like aphids or spider mites, which can be handled with insecticidal soap or a strong spray of water. Overwatering or poorly draining soil can lead to root rot, so ensure good drainage.

Maintenance and Long-Term Care

  1. Pruning: Butterfly bushes bloom on new wood, so pruning in late winter or early spring is essential for promoting vigorous growth and abundant blooms. Cut the plant back to about 12–24 inches above the ground before the new growing season begins. You can also deadhead spent blooms throughout the season to encourage continuous flowering.
  2. Pest Control: Butterfly bushes are generally resistant to pests and diseases, but they may attract aphids or spider mites. If you notice signs of infestation (distorted leaves, small bugs), treat with insecticidal soap or neem oil. Proper airflow and spacing will help prevent any fungal issues like powdery mildew.
  3. Winter Care: In colder climates (USDA zones 5-6), applying a layer of mulch around the base in late fall can help protect the roots from freezing temperatures. The plant will die back to the ground but will regrow from the base in spring.
What Customers say about the Black Knight Butterfly Bush:

The Black Knight Butterfly Bush thrives in Zones 5-9

Growing Zones for the Black Knight Butterfly Bush

If you live in the green area above, we recommend the Black Knight Butterfly Bush.

Your Growing Zone
Recommended Zones 5-9
Mature Height 4-6 ft.
Mature Width 4-5 ft.
Cannot Ship To AZ, OR, WA
Sunlight Full Sun
Botanical Name Buddleja davidii 'Black Knight'

Plants that Make a Difference

For 20+ years, our team has shipped healthy, established plants to gardeners like you- all across the country. Every plant is selected and cared for by our plant experts before it ships to your door.

  • 20+ Years Experience

  • Superior Quality

  • Free Shipping on All Orders

  • Guaranteed to Grow

Large Black Knight butterfly bush with cascading branches covered in elongated clusters of deep purple flowers. The blooms are densely packed and vibrant, creating a striking contrast against the dark green foliage. The shrub has a sprawling, arching growth habit, giving it a lush, full appearance, perfect for attracting pollinators like butterflies to the garden.

Beware- not all Black Knight Butterfly Bushes are the same.

Be sure to get superior butterfly bushes, grown by experts.

Better Roots Make Stronger Plants: Some nurseries send you "bare root" butterfly bushes to save on shipping. Even worse, others have started digging them right out of the ground before shipping. This causes major transplant shock and long-term damage. We send you Black Knight Butterfly Bushes in soil-filled containers- ensuring a well-developed root system that will explode with growth and blooms!

Healthy Plants: We've seen other nurseries grow tall butterfly bushes in tiny pots to save on shipping. This leads to a "root bound" shrub, where the roots have outgrown their pot- they cannot absorb water and nutrients. They quickly dry out during shipment, leading to an unhealthy shrub.

Black Knight butterfly bush with tall, arching stems covered in clusters of deep purple flowers, set against a misty outdoor background. The dense green foliage and vibrant blooms create a lush, wild look, with smaller purple flowers at the base adding layers of color. The bush is surrounded by rocks and other plants, giving it a natural, garden-like setting that’s inviting to butterflies and pollinators.

Black Knight Butterfly Bush brings bold, deep purple color to your garden- and a steady parade of butterflies.

  • Deep purple, nearly black flower clusters up to 12 inches long
  • Blooms from midsummer into fall- deadheading keeps new flowers coming
  • Pollinator magnet for butterflies, hummingbirds and bees
  • Fast-growing and drought tolerant once established, reaching 4-6 ft. tall in zones 5-9

Not all plants are created equal

The Difference Is in the Roots

Every plant we ship has grown in a nursery container with its roots protected, so it arrives healthy, established and ready to thrive in your yard.

A full, branched Nationwide Plants tree in a nursery pot next to a thin bare-root tree with exposed roots Ours: container grown Theirs: bare root
Nationwide Plants Other Nurseries
How it's grown Grown in a nursery container, roots protected the whole time Pulled or dug from the field, tearing fragile roots
How it arrives Arrives in its pot with soil intact Arrives bare root, exposed and drying out
Before shipping Growing naturally until it ships Held dormant in a cooler, then shocked by a hot shipping box
Root health Strong, well-developed roots with room to grow Crammed into a small pot until it's root bound
Height Measured from the top of the soil Often includes the pot and roots
After planting Settles in quickly with less transplant shock Arrives stressed and can take years to recover, if it does

The height you see is the height you plant.

We measure every plant from the top of the soil, not the bottom of the pot. Many nurseries include the pot and roots, so a "5–6 ft." tree from them might stand only 4 ft. tall once it's planted.

Comparisons reflect common practices across the online plant industry, not any single company.

Honest Measurements: Some nurseries measure plants including the pot and roots, so the plant you receive is much smaller than you expected. We measure all of our plants from the soil line, so the height you see is what you can expect after planting.

From our nursery to your door

How We Ship Your Plants

Every order is hand-selected, watered and carefully packed so it arrives healthy and ready to plant. Here's what happens after you place your order.

  1. Hand-Picked for You

    Our team selects the best plant available for your order. For privacy trees, that's the tallest and fullest. For fruit trees, it's the best branched.

    Why it matters: Many online nurseries ship whatever is next in the row.

  2. A Deep Drink Before the Trip

    Every plant gets a thorough watering right before it's packed, so it starts the journey fully hydrated.

  3. Roots Sealed In

    We wrap the pot and roots in plastic to lock in moisture, so your plant has water to drink all the way to your door.

    Why it matters: Bare-root plants are often shipped with their roots exposed and drying out.

  4. Braced for the Ride

    Cardboard inserts are secured inside every box to hold your plant in place, so it won't slide, tip or get damaged in transit.

  5. Shipped Only by FedEx

    We ship your trees exclusively with FedEx. We've found they deliver the fastest and handle live plants the most gently.

And if anything goes wrong, every plant is backed by our 1 Year Warranty.

Healthy Roots Make a Huge Difference

  • Never buy bare-root plants. These trees are starved of nutrients, and have a low survival rate.
  • Beware of nurseries cut corners by growing in small pots. These "rootbound" plants are weak, struggle to absorb nutrients, and die quickly after planting.
  • Some nurseries try to sell oversized plants, but chop off vital roots so they can cram the rootball into a narrow box to save on shipping!

You Want Black Knight Butterfly Bushes Grown by Experts

Some nurseries ship small, weak shrubs grown in tiny pots to save money. These "root bound" plants struggle after planting and take longer to bloom well.

Nationwide Plants only sends you strong Black Knight Butterfly Bushes, selected and cared for by our plant experts, with healthy, developed root systems. That means they settle in quickly and start bringing butterflies to your garden sooner.

Read more about the Black Knight Butterfly Bush

Black Knight Butterfly Bush – A Magnet for Butterflies with Striking Deep Purple Blooms

The Black Knight Butterfly Bush (Buddleia davidii 'Black Knight') is a must-have for any garden that craves bold color and a burst of pollinator activity. Known for its long, arching clusters of deep purple, almost black, blooms, this beautiful, fast-growing shrub is a favorite for attracting butterflies, hummingbirds, and bees. Ideal for sunny garden spots, the Black Knight Butterfly Bush delivers vibrant color from mid-summer to fall, making it a standout in any landscape design.

Key Features of Black Knight Butterfly Bush:

  • Rich, Deep Purple Blooms: The Black Knight variety is known for its intense, deep purple flowers that form in long, elegant clusters, adding dramatic color to your garden.
  • Butterfly & Pollinator Magnet: True to its name, the Black Knight Butterfly Bush is a favorite of butterflies, as well as hummingbirds and bees, creating a lively, pollinator-friendly garden.
  • Fast-Growing & Low Maintenance: This shrub grows quickly, reaching heights of 6-8 feet with a spread of 4-6 feet, and requires little care beyond basic pruning and watering.
  • Long Blooming Season: Enjoy continuous blooms from mid-summer through fall, providing a colorful and fragrant display during the hottest months of the year.
  • Cold Hardy & Drought Tolerant: Thrives in USDA Zones 5-9, tolerating both hot, dry summers and cold winters with ease, making it an adaptable option for a wide range of climates.

A Stunning Addition to Any Landscape

With its tall, arching branches and dramatic, deep purple flowers, the Black Knight Butterfly Bush is a true showstopper in any garden. It’s perfect for use as a flowering hedge, along walkways, or as a stunning focal point in garden beds. Plant it near patios or windows where you can enjoy its fragrant blooms and the beautiful pollinators it attracts. The shrub’s elegant, cascading blooms provide vertical interest and color, transforming any outdoor space into a butterfly haven.

Ideal for Butterfly Gardens and Wildlife Habitats

If you're looking to create a pollinator-friendly garden, the Black Knight Butterfly Bush is an essential addition. Its nectar-rich flowers are irresistible to butterflies, hummingbirds, and bees, ensuring your garden is buzzing with life all season long. Whether you’re planting a dedicated butterfly garden or simply want to add an eco-friendly element to your landscape, this bush delivers both beauty and environmental benefits.

Easy to Grow and Care For

The Black Knight Butterfly Bush is not only beautiful but also remarkably easy to care for. It thrives in full sun and prefers well-drained soil, but it’s highly adaptable to a variety of soil conditions. Once established, this drought-tolerant shrub requires minimal watering and is naturally resistant to pests and diseases. An annual pruning in late winter or early spring encourages fresh growth and keeps the plant looking its best, while deadheading spent blooms throughout the season can encourage even more flowers.

Long-Lasting Seasonal Color

Few shrubs can match the Black Knight Butterfly Bush for its extended blooming season. From mid-summer through early fall, its fragrant, richly colored flowers provide continuous color, even during the hottest months. The long, cone-shaped flower clusters can grow up to 12 inches in length, creating a bold, eye-catching display that enhances any garden or landscape. Its silvery-green foliage adds contrast to the vibrant blooms, making this shrub a striking focal point all season long.

Why Choose Nationwide Plants?

At Nationwide Plants, we’re dedicated to providing the highest quality trees and shrubs to our customers. Our Black Knight Butterfly Bushes are expertly grown and carefully selected to ensure they arrive healthy and ready to thrive in your garden. With fast shipping and a focus on customer satisfaction, you can trust us to deliver beautiful, long-lasting plants to your home.

Attract Butterflies with the Stunning Black Knight Butterfly Bush – Order Now!

Transform your garden into a vibrant haven with the Black Knight Butterfly Bush! Known for its stunning purple blooms, this striking plant is the perfect addition to any landscape. Not only does it serve as a beautiful garden centerpiece, but it also attracts a variety of beneficial pollinators like butterflies and bees, ensuring a lively and flourishing outdoor space. Best of all, you can enjoy this captivating bush with the convenience of delivery right to your door! Order now to bring elegance and vitality to your garden today!

Frequently Asked Questions about the Black Knight Butterfly Bush

How big does a Black Knight Butterfly Bush get?

A Black Knight Butterfly Bush typically grows 4 to 6 feet tall and 4 to 5 feet wide. It is a fast grower with long, arching branches and silvery-green foliage. Cutting it back each spring keeps it compact and full, making it easy to fit into borders, butterfly gardens, and informal hedges.

When does Black Knight Butterfly Bush bloom?

Black Knight Butterfly Bush blooms from midsummer into fall. It produces long, cone-shaped clusters of deep purple, nearly black flowers that can reach up to 12 inches long. Deadheading spent flower spikes throughout the season encourages the shrub to keep producing new blooms.

Does Black Knight Butterfly Bush attract butterflies?

Yes, Black Knight Butterfly Bush is a magnet for butterflies, and its nectar-rich flowers also attract hummingbirds and bees. Plant it near a patio or window where you can watch the activity. It is an excellent anchor plant for pollinator and wildlife gardens.

How do I prune a Black Knight Butterfly Bush?

Prune a Black Knight Butterfly Bush in late winter or early spring by cutting it back to about 12 to 24 inches above the ground. Because it blooms on new wood, this hard pruning promotes vigorous growth and abundant flowers. Deadhead spent blooms during the season to keep flowers coming.

What zones does Black Knight Butterfly Bush grow in?

Black Knight Butterfly Bush grows in USDA Hardiness Zones 5 through 9. In zones 5 and 6, it may die back to the ground in winter but regrows from the base in spring. Apply a layer of mulch around the base in late fall to protect the roots in colder areas.

How much sun does a Black Knight Butterfly Bush need?

A Black Knight Butterfly Bush needs full sun, ideally 6 to 8 hours of direct sunlight daily, for the most flowers and strongest growth. In shade it becomes leggy and blooms poorly. Choose a warm, open spot with good airflow.

Is Black Knight Butterfly Bush drought tolerant?

Yes, Black Knight Butterfly Bush is drought tolerant once established. During its first growing season, give it about 1 inch of water per week to build roots. After that it needs only occasional watering, though the soil should not stay bone dry for long stretches during hot spells.

What soil does a Black Knight Butterfly Bush need?

A Black Knight Butterfly Bush needs well-draining soil with a neutral to slightly alkaline pH of about 6.0 to 7.5. It adapts to many soil types, but soggy soil can cause root rot. Amend heavy clay with compost, and skip heavy fertilizing, which can reduce flowering.

Is Black Knight Butterfly Bush invasive?

Butterfly bush can self-seed and is considered invasive in some regions, particularly the Pacific Northwest. Deadheading spent flower spikes before they set seed greatly reduces spreading and also encourages more blooms. Check your local guidelines before planting, especially near natural areas.

Which states can Black Knight Butterfly Bush not ship to?

Black Knight Butterfly Bush cannot be shipped to Arizona, Oregon, or Washington because of state agricultural shipping restrictions on this plant. Customers in the other states where it is offered can order it normally. Gardeners in those three states can ask a local nursery about approved pollinator shrubs.
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