perennial cornflower
Also known as: great blue-bottle; mountain bluet; mountain centaury
A rhizomatous perennial with simple or lobed leaves, hairy beneath, and blue flower-heads 5cm across, reddish in the centre, from late spring to summer
Scientific classification
- Species
- perennial cornflower (Centaurea montana)
- Genus
- Centaurea
- Family
- Asteraceae
- Information to be completed
- Toxicity
- Herbaceous Perennial
- Plant type
- 0.1-0.5 metres
- Height
- 0.5-1 metres
- Spread
- Deciduous
- Foliage
- Information to be completed
- Habit
- Spring · Summer · Autumn
- Season of interest
- Full sun · Partial shade
- Sunlight
- 15 – 25 °C
- Ideal temperature
perennial cornflower pictures
Distribution of perennial cornflower
Distribution map
Mountains of Europe
Information to be completed
Culture
Information to be completed
Toxicity
Information to be completed
Quick identification of perennial cornflower
Information to be completed
perennial cornflower care guide
- Moderate regular watering, allowing brief slight drying between soakings
- Watering
- Full sun · Partial shade
- Sunlight
- 15 – 25 °C
- Ideal temperature
Watering
Moderate regular watering, allowing brief slight drying between soakings
Fertilizing
FertilizingBalanced perennial feed every four weeks from spring through summer
Pruning
PruningDeadhead regularly to prolong flowering
Propagation
PropagationPropagate by seed sown in pots in a cold frame in spring or propagate by division in spring or autumn
Growing
GrowingBest grown in moist but well-drained soil in sun or partial shade, needs staking
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Common pests and diseases
Diseases
May be affected by powdery mildews
Pests
Generally pest-free
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