A picture of a Knapweed

Knapweed

Centaurea bella

Also known as

Bachelor’s Button, Evergreen Cornflower

Full Sun
Moderate care
Light watering
Frost Hardy

H7

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

30cm

Max

45cm

10cm

Min

10cm

Flowering

  • spring
  • summer
  • autumn
  • winter