How to Prune knapweed 'Amethyst on Ice'?
No pruning required, but deadheading may help to prolong flowering
knapweed 'Amethyst on Ice' · Pruning
knapweed 'Amethyst on Ice' · Centaurea 'Amethyst on Ice'
Grow in moist but well-drained soil in sun or partial shade
Watering: Moderate regular watering, allow slight drying between wateringsSunlight: Full sun · Partial shadeInformation to be completed