About
This upright annual reaches a height of 30 cm, featuring slender leaves and vibrant blue blooms that emerge in late spring and continue into summer.
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
- Soil type
- Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Annual Biennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1 year
- Suggested uses
- Wildlife gardens, Wildflower meadow, Coastal, Patio and container plants
Care notes
- Cultivation
- Grow in well-drained soil in full sun
- Pruning
- Deadhead regularly to prolong flowering
- Propagation
- Propagate by seed sown in-situ in spring
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to powdery mildews