How to Propagate giant knapweed?
Propagate by seed sown in pots in a cold frame in spring or propagate by division in spring or autumn
giant knapweed · Propagation
giant knapweed · Centaurea macrocephala
Also known as: great-headed centaury
Best grown in moist but well-drained soil in sun or partial shade
Watering: Moderate regular watering, allowing brief slight drying between soakingsSunlight: Full sun · Partial shadeInformation to be completed