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Commonly known as Knapweed
Genus of about 650 species of annuals, perennials and subshrubs widely found in dry sites, rocky mountain slopes, subalpine meadows, woodland and sand dunes mainly in Europe and the Mediterranean.
Some Knapweeds in the wild can be invasive but garden forms are ornamental and all are beneficial to insects.
In the UK the common C. nigra, Hardhead, can be dried and flower tops make a pale yellow-green dye.
The native perennial Greater knapweed, C. scabiosa can be found mainly in the south and east of England in hedgerows, roadsides and dry grassland.
Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch. - thistle-like, spherical or hemispherical flowers with tubular florets.
Additional Features - Good to know - wildlife plant - bees and butterflies.
Pests & Diseases - powdery mildew.
Place of origin - Europe, Mediterranean, North America, Australia.
Soil Conditions - Fertile well drained soil
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video