Buddleja davidii 'Black Knight'
butterfly bush (syn. buddleia)
- 2 litre pot
- £13.99 £19.99
- In stock (shipped within 2-3 working days)
- 10 litre pot | 80 - 100cm tall
- £69.99
- available to order from autumn
Delivery options
- Standard £5.99
- Position: full sun or partial shade
- Soil: fertile, well-drained soil
- Rate of growth: fast
- Flowering period: July to September
- Hardiness: fully hardy
Buddleja makes a fabulous addition to a sunny border, with dramatic, fragrant flowers that are attractive to butterflies and other beneficial insects. Pruned hard in spring, 'Black Knight' produces dense spikes of tiny, fragrant, dark purple flowers. In autumn the pointed grey-green leaves turn butter-yellow. Deadheading the buddleja will encourage it to produce more flowers and stop any unwanted seedlings.
Plant out as soon conditions allow, avoiding frozen or waterlogged soil. Incorporate well-rotted manure or garden compost and perhaps some mycorrhizal fungi into the soil when planting.
Keep well-watered during warm weather until the plant has settled in fully, and once the plant has become established, prune it hard each year in March, cutting all of the previous year's growth back to within two to four buds from the base.
Keep well-watered during warm weather until the plant has settled in fully, and once the plant has become established, prune it hard each year in March, cutting all of the previous year's growth back to within two to four buds from the base.
