About
Centaurea 'Amethyst on Ice' is a herbaceous perennial that reaches a height of about 40 cm. It features broad, lance-shaped green foliage and produces flowerheads adorned with white ray florets surrounding purple central discs. This plant blooms from late spring through late summer and is known to attract bees.
About the genus
Centaurea includes annuals, perennials, and subshrubs, characterized by simple or pinnately lobed foliage and prominent flower heads resembling thistles, frequently featuring enlarged outer florets.
Growing conditions
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- West-facing, East-facing, South-facing, North-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.5-1 metres
- Time to full height
- 2-5 years
- Suggested uses
- Cottage and informal garden, Coastal, Prairie planting
Care notes
- Cultivation
- Grow in moist but well-drained soil in sun or partial shade
- Pruning
- No pruning required, but deadheading may help to prolong flowering
- Propagation
- Propagate by division in spring or autumn, or by root cuttings in winter
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to powdery mildews but generally disease-free