Also known as
Lesser Knapweed, Hardheads, Bell Weed, Black Centaury, Black Knapweed, Bowl Weed, Bull Weed, Button Weed, Churl's Head, Club Weed, Crop Weed, Hard Weed, Horse Knops, Iron Hard, Iron Heads, Iron Weed, Knob Weed, Knot Weed, Loggerheads, Spanish Buttons, Sweeps, Tassel, Black Starthistle
2 years to reach maturity
More images of Common Knapweed
Common Knapweed Overview
This is a perennial with lance-shaped or lanceolate leaves and single clusters of red-purple tubular flowers which bloom in the early summer.
Common problems with Common Knapweed
How to propagate Common Knapweed
You can propagate by seeds or division in the autumn or spring.
Special features of Common Knapweed
Attracts useful insects
Moths, hoverflies, bees, butterflies
Other uses of Common Knapweed