BUDDLEIA DAVIDII `BLACK KNIGHT`

$73.99

This plant literally explodes into a summer landscape with masses of 4″ to 10″ long cone-shaped flowers in dark purple shades from July through September. Adding to this color are the clouds of butterflies these flowers attract while open. Extremely fast growing and fountain-shaped, it is best treated as a woody perennial and cut back in the winter to ensure the new growth that will hold the summer’s flowers.

2253 in stock

Additional Information

Growth Height 6-9'
Growth Spread 6-9'
Growth Tips Prune in early spring down to 12-15" size to rejuvenate. Clip spent flowers to encouage rebloom. Thrives in full to part sun and most soils.
Hardiness Zone 5-8
Container Size #3 — A more mature container, with rootballs around 8 – 9 in wide and plants typically 18 – 24 in in height. Choose this for instant impact in the landscape or for established shrubs and vigorous perennials.

Shipping Information

At Heritage Hill Nursery, we are committed to delivering healthy, beautiful plants right to your door. Here’s what you need to know about our shipping:

  • Shipping Rate: All orders ship free! 
  • Shipping Area: We currently ship to the 48 continental United States only.
  • Processing Time: Orders are processed and shipped within 3–5 business days.
  • Shipping Method: We use Standard Shipping to ensure your plants arrive safely and in a timely manner.

We take great care in packaging your plants to ensure they arrive in excellent condition.

Returns Policy

All sales are final. However, your satisfaction is important to us.

If your plant arrives in unacceptable condition, please contact us within 48 hours of delivery. Include photos and a brief description of the issue, and we will work with you to make things right.

We’re here to help – just reach out and let us know how we can assist.

Understanding Plant Pot Sizes

When you’re choosing plants, you’ll often see sizes listed as #1, #2, or #3 containers. These numbers refer to the volume of the pot, not the age of the plant.

#1 Pot – Holds about 1 gallon of soil. These are small starter plants, great for tight spaces or filling in around larger features.

#2 Pot – Holds about 2 gallons of soil. A medium size that balances affordability with faster establishment in the landscape.

#3 Pot – Holds about 3 gallons of soil. These larger plants give more immediate impact and tend to establish quickly.

Bigger pots generally mean more mature root systems, but the right choice depends on your project goals, timeline, and budget.

Featured Categories

Perennials

Color that comes back year after year! Choose from tried-and-true varieties and unique bloomers, all hardy to Zone 5.

Trees

From flowering ornamentals to shade trees and privacy evergreens, our tree selection adds structure, beauty, and long-term value to your landscape.

Shrubs

Low-maintenance and endlessly versatile—shrubs bring 
four-season interest and form 
to any yard.

Herbs & Editables

Grow your own flavor! Shop herbs, small fruits, and edible plants that thrive in Wisconsin gardens and containers.

Pollinator & Native Picks

Support bees, butterflies, and birds with native and pollinator-friendly plants chosen to thrive 
in our region.

How Online Ordering Works

Browse & Select Plants

Add your favorite items to your cart

Checkout Securely

Your order is processed through our drop-ship partner

Delivery to Your Door

Plants are shipped directly from the grower 
for peak freshness

Questions about your order? Need help choosing the right plant?

We’re still your local experts—contact us anytime or stop into the nursery!

Need Help?

Need Design Help or a Planting Plan?

Pair your online plant purchase with our professional Landscape Design services for a space that’s not only beautiful, but thoughtfully planned.

Want to Shop In-Person?

Visit our Cedarburg Garden Center for even more plant varieties, expert advice, and seasonal deals
you won’t find online.

Location
Heritage Hill Nursery
10801 Pleasant Valley Rd
Cedarburg, WI 53012

Map

Phone: (262) 305-4045
Email: jade@heritagehillnurseryinc.com

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