Lesser Knapweed (Centaurea nigra) wildflower

Ref: LESSER

Vibrant violet flower heads sit atop a 40-60 cm stem, there will often be several flower heads on each stem and these will be out in flower from June to September. Lesser Knapweed is a fantastic provider of nectar for bees and butterflies, and seed supply for finches. Knapweed is sometimes known as hardheads, in reference to the nobby seedheads.