Cornflower Centaurea cyanus

Also known as: bachelor's button

endangered


Best time to see: Jun to end Aug

Key facts

An annual with intense blue flowers, once common in arable fields but now almost extinct in the wild

Grows up to 90 cm tall; branching stems with narrow grey-green alternating leaves

Seed usually germinates the following spring but can remain viable for years

  • photo

© Tony Gunton