- USDA Hardiness Zones 5-9
- Height 6-8 Feet Tall
- Spread 4-6 Feet Wide
- Light Requirement is Full Sun
Loaded with large summer flowers, Black Knight Butterfly Bush (Buddleja davidii) should hold a special spot in your landscape. The shrub grows to a height of nearly 8 feet and almost 6 feet around. It's an easy-care addition to low-water, Mediterranean, cottage or natural garden styles. Each spring, rains bring rapid growth to butterfly bushes. Black Knight's long arching stems cascade downward, and the tips are filled with the large, cone-shaped flowers that average 4 to 10 inches long.
The large purple flowers of Black Knight Butterfly Bush actually are made up of many tiny deep purple blooms, each perfect for hummingbirds and butterflies gathering sweet nectar. The flowers are fragrant for humans to enjoy, too. Black Knight continues blooming throughout summer and into early fall. Deer and rabbits leave butterfly bushes alone. The drought-tolerant shrub comes back year after year in zones 5 through 9.
Black Knight Butterfly Bush Care
Black Knight Butterfly Bush is an easy shrub to grow, so it's a winner in most landscapes. Choose a sunny spot and soil that drains well; the shrub performs best with a little afternoon shade in hotter regions of zones 8 and 9. Be sure to plant your butterfly bush so the crown is just above the soil level once you water at the base. Cut the butterfly bush stems down to a few feet above the ground each spring when new growth appears at the bottom of the plant. There is no need to deadhead this beauty, but you can cut the flowers for arrangements.
Black Knight Butterfly Bush Spacing
Plant a colorful cascading border with several Black Knight Butterfly Bush for a butterfly gathering place in your landscape. Space the shrubs 5 to 6 feet apart from center to center to give them room to grow to full size.
Black Knight Butterfly Bush Plant Facts
| USDA Hardiness Zones: 5-9 |
| Flower Color(s): Purple |
| Bloom Period: Midsummer through Fall |
| Foliage Color(s): Gray-green |
| Light Exposure: Full Sun |
| Height: 6-8 Feet |
| Spread: 4-6 Feet |
| Habit: Upright Spreading |
| Watering: Medium |
| Features: Showy Summer Flowers |
| Scientific Name: Buddleja davidii 'Black Knight' |
| Common Name: Black Knight Butterfly Bush |
- SKU:
- BUDBK
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.
4.5" Pot
Also Known As:
4.5" Container
Plant Age:
~ 6 months
Plant Size:
~ 3"-6"
Pot Size:
~ 4.5"H x 3.75"W
Volume:
1.42 quarts
Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
For more detailed information, please click here.
Plant Addicts Guarantee (Included On All Plant Orders)
Plant Addicts always guarantees your plant(s) will arrive happy & healthy. However, plant(s) are being shipped through the mail & sometimes accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped, just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note, plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.
For more information on how to care for your new plants, please click on our guide below.
Guide: How to Care for Your New Plant(s)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)
We encourage all plant lovers to purchase the Plant Addicts Warranty, whether you're a new gardener or an expert. There are many variables outside of anyone's control that can cause a plant to die. Hungry animals, drought, poor soil conditions, over watering, diseases & pests are all good examples of what can cause plants to die. The Plant Addicts Warranty is a 1 year warranty protecting you from all of the unknowns and will replace your plant if something were to happen to it.
The warranty is purchased on a per plant basis and must be purchased at the same time as the plant(s). We will cover 100% of the price of the plant, but the warranty does not cover shipping costs. SImply let us know if your plant has died within 1 year of receiving it and we will get you a new one shipped out as soon as possible (depending on the time of the year and availability). We may ask for photos for documentation purposes, but we try to make the process as easy as possible.
For more information, please click on our page below.
Plant Shipping
Below are some factors we consider when determining when to ship the plants depending on the timing of the order.
Winter to Early Spring
We ship only when it's warm enough to plant in your growing zone.
Sometimes plants aren't completely ready to sell and ship in early spring. We will wait until the plants are ready before shipping so you don't get a subpar product.
For Southern plants we will be able to ship much earlier than plants coming from our northern nursery.
Summer
If there is extreme heat we may delay shipping for a week or several weeks.
We review what areas the plants are traveling through as well as your location.
Fall into Winter
We’ll ship plants out all the way up to the end of the fall planting season!
Winter
Get your order in early to reserve your plants for Spring planting!
Once your plant is shipped you’ll receive an automated email with tracking information.
Click here for more detailed shipping information.
Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations