Full Sun
Moderate watering
Frost Hardy
7a
USDA zone
-18°C
Minimum temperature
Expected size
Height | Spread | |
|---|---|---|
1m | Max | 50cm |
50cm | Min | 10cm |
5 years to reach maturity
Flowering
spring
summer
autumn
winter
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
Division
You can propagate by seeds or division in the autumn or spring.
Seed
Special features of Common Knapweed
Attracts butterflies
Other uses of Common Knapweed
Waste land