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5 delphinium Postiplug plants £4.99 with every order

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Buddleja davidii 'Black Knight'Buddleia, Butterfly Bush

3 Options from £9.99

Hardy Shrub
What is Hardy Shrub?
Woody plant, usually having a permanent framework of branches.
Capable of withstanding outdoor winter temperatures down to -15C.
1 buddleja plant in 1 litre pot £9.99 Out of Stock
1 buddleja plant in 3 litre pot £14.49 Out of Stock
2 buddleja plants in 3 litre pots £18.98 Out of Stock
Description How to Grow More Info Delivery
One of the darkest butterfly bushes available, Buddleja ‘Black Knight’ produces majestic panicles of rich purple-black blooms. The sweet, bubblegum scented flowers attract clouds of butterflies and beneficial insects, making this an ideal plant for a wildlife garden. This fast growing deciduous shrub is particularly easy to grow and needs little attention once established. Height: 3m (10’). Spread: 4m (13’).

Wildlife Gardens, Cottage Gardens


sun or semi shade

200cm (79in)

500cm (197in)

RHS AGM,RHS plants for pollinators

1 Buddleja Plant In 1 Litre Pot (V58917)
1 Buddleja Plant In 3 Litre Pot (V59466)
2 Buddleja Plants In 3 Litre Pots (V59467P)

Flowering Months
Feed and water buddleja plants until they are well established. Once established, Buddleja requires little attention throughout the growing season and is reasonably tolerant of dry soil. In spring, prune all buddleja stems back to 3 or 4 buds from the previous year’s growth and apply a mulch of well rotted manure or compost around the base of the plant.
Buddleja is a versatile plant that will grow in most sites and soil conditions, but particularly enjoys sunny borders in any moist, well drained soil.


Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes etc are delivered at the appropriate time for planting and will be stated on the product page or in your order acknowledgement page and email.

Orders for packets of seed or plants incur a delivery charge of £4.99.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details and details of any surcharges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.