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- SKU:
- BDBK-9X2
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Details
Buddleja ‘Black Knight’ is a fabulous addition to a sunny border, with dramatic, dark purple, fragrant flowers that are attractive to butterflies and bees. Pruned hard in spring, 'Black Knight' produces dense spikes of tiny, fragrant, grape-violet flowers, this is the darkest flowered buddleja. In autumn the pointed grey-green leaves turn butter-yellow. A vigorous deciduous shrub that will withstand hard pruning to any size required to suit your garden
Click on the 'Growing Information' tab for more details about this plant.
Growing Information
| Common Name | Butterfly Bush |
|---|---|
| Genus | Buddleja |
| Exposure | Exposed, Sheltered |
| Soil Type | Chalk, Loam, Sand, Clay |
| Soil pH | Acidic, Alkaline, Neutral |
| Soil Moisture | Moist / Well Drained |
| Height (Max.) | 200-400cm |
| Spread (Max.) | 400cm (4m) |
| Growth Habit | Arching, Bushy |
| Flower Colour | Purple |
| Foliage Colour | Green, Grey-green, White |
| Planting | Plant in moist, well-drained soil in full sun. Deadhead flowers to encourage further flowering. Cut back hard in late spring to prevent it becoming too large. |
Reviews
Plant Care
What are you buying?
4L, 2L & 1L refer to pot volume in litres. 9cm, 7cm & 5cm refer to pot diameter. These are common terms used in plant retail to indicate the size of a plant root system. Leaf & stem growth on plants varies widely by variety and time of year. Usually, 1L/2L/4L plants can be anywhere between 20-60cm tall & 5/7/9cm plants will be around 10-30cm tall. However, this may be less if the plant is naturally low growing or if it is a herbaceous plant in winter.
Plug plants are small plants grown from seeds or cuttings in cell trays. Their root systems start from about 1cm and the largest plug plants, described as extra-large or jumbo, are usually around 4cm. Plug plants can be great value to buy but they will need some extra care to get them started. We recommend planting each plug plant into its own 7 or 9cm pot (about the size of a standard mug), NOT directly into open ground or large pots. Ensure the pot has plenty of holes underneath and preferably over two tiers for even better drainage.