Awarded 'Best Garden Centre in the UK' in 2018, 2021 & 2025 by the Garden Centre Association

Green Inspiration  |  SKU: 30245304  |  Barcode: 8785266901200

Buddleja davidii 'Black Knight' - Butterfly Bush - 2Ltr Pot

£999
Why Purchase From Us?
🏆 Best Garden Centre in the UK in 2018, 2021 & 2025
🚚 Orders dispatched within 24 hours (next day delivery available)
🌼 Our team of experts are on hand 7 days a week
💚 Support a family run, independent business

1 in stock


Buddleja davidii ‘Black Knight’ Butterfly Bush is a striking deciduous shrub known for its deep purple, fragrant flower spikes that attract butterflies and pollinators. Perfect for sunny borders, this vigorous plant delivers bold colour and wildlife interest throughout summer.

Key Features

  • Rich, deep purple flower panicles with a pleasant fragrance
  • Excellent for attracting butterflies, bees, and other pollinators
  • Vigorous growth, ideal for creating height and structure in borders
  • Drought tolerant once established, suitable for low-maintenance gardens
  • Hardy to -20°C, well-suited to UK climates
  • Supplied in a 2L pot, ready for planting

Product Description

Buddleja davidii ‘Black Knight’, commonly known as the Butterfly Bush, is a classic garden favourite valued for its dramatic, dark purple blooms and reliable performance. Producing elongated clusters of scented flowers on the tips of current year’s growth, this shrub provides a long-lasting display from mid to late summer while attracting a wide range of pollinators.

Its arching branches and lance-shaped green leaves, which are softly pale beneath, create a graceful, airy structure that works well in both informal and structured planting schemes. Ideal for wildlife gardens, cottage gardens, or mixed borders, ‘Black Knight’ offers strong visual impact and ecological benefits.

Adaptable to a variety of soil types—including chalk, clay, loam, and sandy soils—this hardy shrub thrives in sunny positions and tolerates drier conditions once established. Its robust nature and minimal care requirements make it an excellent choice for gardeners seeking a dependable yet eye-catching feature plant.

Specifications

  • Product Name: Buddleja davidii ‘Black Knight’ – Butterfly Bush
  • Pot Size: 2L
  • Plant Type: Deciduous flowering shrub
  • Flower Colour: Deep purple
  • Fragrance: Yes, scented blooms
  • Ultimate Height: 2.5–4 metres
  • Ultimate Spread: 2.5–4 metres
  • Time to Maturity: 5–10 years
  • Hardiness: Hardy to -20°C
  • Drought Resistance: Yes (once established)

Growing Conditions

  • Soil Types: Chalk, clay, loam, sand
  • Soil pH: Acid, neutral, alkaline
  • Moisture: Moist but well-drained or well-drained soil
  • Position: Full sun or partial shade
  • Aspect: East-, South-, or West-facing
  • Exposure: Suitable for exposed or sheltered sites

Care Tips

  • Prune hard in early spring to encourage fresh growth and abundant flowering
  • Plant in a sunny position for the best colour and bloom production
  • Water regularly during the first growing season to establish roots
  • Deadhead spent flowers to prolong the flowering period
  • Apply mulch annually to help retain soil moisture and improve soil quality

Add Bold Colour to Your Garden

Bring dramatic depth and pollinator appeal to your outdoor space with Buddleja ‘Black Knight’. A reliable, easy-care shrub that’s perfect for gardeners looking to combine striking colour with wildlife-friendly planting.

About Us

We are a family run, independent Garden Centre, Farm Shop and Restaurant combined. We are proud to offer the very best gardening, home and outdoor living products alongside delicious, fresh, locally produced food and drink.

Awarded 'Best Garden Centre in the UK in 2018 & 2021 you can rest assured that we offer excellent products, plants and customer service.

Learn more about us and our story on the 'About Us' page.

Delivery

Collect your order in-store, have it delivered to your door, or choose a convenient InPost Locker!

We aim to dispatch orders as quickly as possible using trusted couriers.

Your Questions Answered...

What are the delivery options and prices?

We offer Standard (3-5 working days) and Express (1-2 working days) delivery for a small additional charge.

- Postable items (e.g., seed packets, gift cards) - £2.95 via Royal Mail.
- Smaller, lighter items - £4.95 – £6.95.
- Larger, heavier, and fragile items - £9.95 – £19.95.
- Pallet deliveries (e.g., furniture) - from £69.95 (see kerbside pallet delivery details below).

The exact delivery charge is calculated at checkout based on your selected items.

New! Deliver to InPost Locker

Instead of home delivery, choose to collect your parcel from an InPost Locker near you.

- Delivery rates: £3.95 or £4.95 depending on item size.
- How it works: Choose InPost after completing your order. You'll receive a notification when your parcel is ready to collect.
- Collection options: Scan the QR code or open the locker remotely via the InPost app. If collecting from a shop, show your QR code to the staff.
- Collection time: You have 3 days to pick up your parcel. InPost will send a reminder 24 hours before expiry.
- Tracking: Track your parcel via the InPost app or the tracking link in your confirmation email.

Can someone else pick up my parcel?

Yes! Share your QR code or collection code (sent via email) along with your mobile number, and they can collect it for you.

Do I need ID to collect from an InPost Locker?

No, just scan the QR code in the app or your email. For InPost Shop collections, show the QR code to the staff.

Any more questions?

Visit InPost’s [help page](#) for more details or check their blog for tips and updates.

How do I track my delivery?

Once your order is dispatched, you'll receive an email with tracking details.

Who delivers my order?

Depending on size and weight, orders are delivered by Royal Mail, Evri, or Parcelforce. Furniture and large items arrive via kerbside pallet delivery.

What is kerbside pallet delivery?

Large items like furniture are delivered on a pallet using a heavy goods vehicle. The pallet is placed at the nearest safe kerbside location. The driver cannot move it across uneven ground or remove the items from the pallet.

We can arrange a delivery date that suits you. If access for large vehicles is difficult, please let us know in advance.

What should I do if my order arrives damaged?

If your order is damaged in transit, email us a photo and your order number within 24 hours so we can resolve the issue.

Do you deliver to Northern Ireland?

Yes, though some larger or heavier items may incur a surcharge. Unfortunately, we cannot ship plants to Northern Ireland at this time.

Do any UK areas have a delivery surcharge?

Additional delivery charges may apply for:
- Channel Islands
- Northern Ireland
- Scottish Highlands & Islands
- Isle of Man & Isle of Wight
- Scilly Isles

What is the warranty on my purchase?

All products come with a manufacturer’s warranty (typically 12 months unless stated otherwise). Faulty items within the warranty period may be repaired or replaced subject to the manufacturer’s terms.

Still have questions?

Contact us via our enquiry form, call 01497 847055, or email shoponline@oldrailwaylinegc.co.uk.

Returns

How do I return an item?

If a purchase is no longer required you are able to return the goods within 28 days of delivery for a full refund in accordance with our refunds policy set out in Clause 10 of our Terms & Conditions. We will refund any money received from you using the same method originally used by you to pay for your purchase. Please make sure that you include the sales order or invoice with your return.

When returning items to us, please ensure that any and all original packaging, instructions, tags etc are included as supplied to you. We recommend using a recorded/insured service to return your order. The Old Railway Garden Centre cannot be held responsible for returned items lost or damaged in transit to us.