Overview
Centaurea montana 'Carnea' is a clump forming, spreading branched herbaceous perennial in the genus Centaurea, part of the Asteraceae family, with deciduous foliage. It typically grows around 0.1-0.5 metres tall and 0.1-0.5 metres wide, reaching full size in around 2-5 years. Centaurea montana 'Carnea' grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include coastal, cottage and informal garden, wildlife gardens, cut flowers and flower borders and beds. It is native to Belgium, Austria, Czechoslovakia, Switzerland, Germany, Yugoslavia and Poland.
About
Centaurea montana 'Carnea' is a herbaceous perennial cultivar of the Centaurea genus, commonly known as perennial cornflower 'Carnea'. It forms clumps with a spreading branched habit, growing to between 0.1 and 0.5 metres in height and spread over 2 to 5 years. This deciduous plant thrives in full sun or partial shade and is suitable for east, south, or west-facing aspects in both exposed and sheltered locations. It prefers moist but well-drained soils of various types and pH levels, including chalk, clay, loam, and sand. Its season of interest spans spring and summer.
About the genus
Centaurea is a genus of over 700 species of herbaceous thistle-like flowering plants in the family Asteraceae. Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich.
Wikipedia contributors, "Centaurea", CC BY-SA 4.0 — Centaurea
Growing conditions
Best soil and position for Centaurea
- Sunlight
- Full sun, Partial shade
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
Centaurea montana 'Carnea' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming, Spreading branched
- Foliage
- Deciduous
- Height
- 0.1-0.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Coastal, Cottage and informal garden, Wildlife gardens, Cut flowers, Flower borders and beds
- Native to
- Belgium, Austria, Czechoslovakia, Switzerland, Germany, Yugoslavia, Poland
Care notes
Pruning and caring for Centaurea montana 'Carnea'
- Propagation
- Seed sown in-situ in spring or autumn, Division in spring or autumn
- Pest resistance
- Generally pest-free
- Disease resistance
- Powdery mildews
Frequently asked questions
Where is the best place to plant Centaurea montana 'Carnea'?
Centaurea montana 'Carnea' prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Centaurea montana 'Carnea' need?
Centaurea montana 'Carnea' is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
How big does Centaurea montana 'Carnea' grow?
Centaurea montana 'Carnea' reaches a height of 0.1-0.5 metres and a spread of 0.1-0.5 metres. It takes around 2-5 years to reach full size.
Is Centaurea montana 'Carnea' hardy in the UK?
Centaurea montana 'Carnea' has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Centaurea montana 'Carnea'?
Seed sown in-situ in spring or autumn, Division in spring or autumn.
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More in the Centaurea genus
- Centaurea 'John Coutts'

- Centaurea atropurpurea 'Alba'Cornflower

- Centaurea cyanus 'Mauve Ball'Cornflower

- Centaurea dealbata steenbergiimealy centaury 'Steenbergii'

- Centaurea hypoleucaCornflower

- Centaurea hypoleuca 'John Coutts'Cornflower

- Centaurea montana 'Alba'white perennial cornflower

- Centaurea montana 'Parham Variety'Cornflower
