Black Knapweed (Centaurea nigra) plants
Price range: £1.25 through £3.95
Black Knapweed (Centaurea nigra) is a hardy native perennial wildflower that produces rich purple, thistle-like flower heads from June to September. Its long flowering period and upright stems make it a key species for wildflower meadows, grasslands, and pollinator-focused planting schemes.
This species thrives in a wide range of well-drained soils and grows best in full sun. It naturally occurs in hay meadows, roadside verges, field margins, and species-rich grasslands across the UK. Therefore, it is highly suitable for meadow creation, habitat restoration, and conservation projects.
The nectar-rich flowers attract bees, butterflies, hoverflies, and many other pollinating insects throughout the summer. In addition, it provides an important late-season food source when many other wildflowers have finished flowering. Its seed heads also support birds later in the year, adding further ecological value.
Our Black Knapweed plants for sale are priced per plant. For orders over 500 plants please contact us.
All our plants are native British wildflowers grown in Peat-free compost in our sustainable nursery.
| Size | 110cc, 65cc, 99cc, 9cm pot |
|---|---|
| Common Name | Black Knapweed |
| Annual, Perennial or Biennial | Perennial |
| Latin Name | Centaurea Nigra |
| Height | 40 – 70cm |
| Flowering Time | June – September |
| Colour | Red To Purple |
| Management | Black Knapweed generally needs little management. One cut back per year should be enough. It can be easily planted in herbaceous borders. The plant is an attractive nectar source for many butterflies, e.g. Small Skipper, Silver Spotted Skipper, Brimstone, Chalkhill Blue, Adonis Blue, Small Tortoiseshell, Peacock, Comma, Silver-washed Fritillary, Marbled White and Meadow Brown. |
| Fact Sheet Included | Yes |
