Buddleja davidii 'Black Knight', commonly known as Butterfly Bush 'Black Knight', is a UK garden favourite and recipient of the RHS Award of Garden Merit. This deciduous, vigorous shrub has deep purple-violet, sweetly scented, large flower spikes which are a magnet for butterflies and other pollinators. Its long, lance-like green leaves have paler undersides and the shrub has an overall softly arching habit.
Buddleja 'Black Knight' flowers from July to September, providing an extended summer blooming season and food for insects later into the year and in autumn the leaves become golden-yellow before falling.
A vigorous shrub with a bushy habit, Buddleja 'Black Knight' is fast growing at around 40cm a year. If left to grow, it can reach heights of 10ft tall and equally wide (although it can be maintained at a smaller size quite easily) so will benefit from a decent amount of space in a sunny bed or border in which to thrive.
Buddleja 'Black Knight' is a colourful and fragrant plant that is both impressive and eye-catching. It will thrive in sunnier positions, but will also tolerate partial shade and will grow in any fertile soil as long as it is moist and well-drained.
We recommend deadheading the flowers on your Buddleja 'Black Knight' once spent to encourage more blooms. A hard prune around March, back to around 3 or 4 buds will ensure healthy growth and good flower production come the summer.
This slow-growing and no fuss shrub will require very little pruning if any at all. If a tidy-up is needed, carry out any trimming after flowering.
is available on most orders (except Premium Products) providing they meet the minimum spend criteria for the size of box or pallet. Pallet deliveries and large box deliveries for tall plants are indicated by icons on the product table listings. Delivery costs and minimum order details for each packaging type are as follows:
|Packaging Type||Standard Delivery Charge||Minimum Order Values (incl VAT) for FREE Delivery|
|Boxes (Bare roots and pots up to and incl. 7.5L)||£7.99 delivery charge (orders up to £100 incl VAT) ||Orders of £100 and over - FREE|
|Pallets (Root balls, large pots (10L+), trees etc)||£30.00 delivery charge (orders up to £300 incl VAT)||Orders of £300 and over - FREE|
There are some exceptions to the standard delivery pricing structure, which relate to deliveries to more remote areas, overseas, or extremely tall or large plants requiring specialist delivery - for more information see the Delivery Information Page. (Please note that due to new Brexit rules, we are currently unable to export to both Northern Ireland and the Republic of Ireland.)Delivery Time
- Please note that delivery times are currently 3-7 days excluding bank holidays. *Some troughs and trees may take up to 14 days delivery. We are working through existing orders as quickly as possible to deliver new orders within this timescale.It's Convenient
- no need to wait in all day to sign, we don't need a signature (the odd, larger order may require a signature but will be delivered at a mutually agreeable time)It's Tried & Tested
- we use only couriers who have shown consistency in their efficiency & care
* Please note that delivery costs are based on the final order amount in your cart after
any discounts have been applied.
Hedges Direct 12 Month Plant Guarantee
Our plants are guaranteed for 12 months after delivery subject to specific criteria. Visit our Hedges Direct Plant Guarantee Page
for full details.