Overview
Centaurea dealbata is a plant with a clump-forming, spreading habit in the genus Centaurea, part of the Asteraceae family, with green, sometimes silvery-green foliage. Centaurea dealbata grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include borders, rock gardens, bedding and naturalizing.
About
Psephellus dealbatus, the Persian cornflower or whitewash cornflower, is a species of Psephellus native to the Caucasus Mountains and Turkey. It is widely cultivated as an ornamental perennial.
Wikipedia contributors, CC BY-SA 4.0 — Psephellus dealbatus
Growing conditions
Best soil and position for Centaurea
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H5
Plant details
Centaurea dealbata size, habit and characteristics
- Habit
- Clump-forming, spreading
- Foliage
- Green, sometimes silvery-green
- Suggested uses
- Borders, rock gardens, bedding, naturalizing
Care notes
Pruning and caring for Centaurea dealbata
- Propagation
- Seed, division
- Pest resistance
- Resistant to common pests
- Disease resistance
- Resistant to common diseases
Frequently asked questions
Where is the best place to plant Centaurea dealbata?
Centaurea dealbata prefers full sun. It suits sheltered positions.
What soil does Centaurea dealbata need?
Centaurea dealbata grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Centaurea dealbata hardy in the UK?
Centaurea dealbata has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.
How do I propagate Centaurea dealbata?
Seed, division.
More in the Centaurea genus
- Centaurea atropurpurea
- Centaurea crassifolia
- Centaurea cyanus 'Mauve Ball'Cornflower
- Centaurea cyanus 'Snowman'cornflower 'Snowman'
- Centaurea glastifoliawoad-leaved centaurea
- Centaurea jaceabrown knapweed
- Centaurea macrocephala
- Centaurea maculosa
