cornflower

Also known as: barbeau; blaver; blue blaw; blue bonnets; blue bow; blue sailors; blue tops; break-your-spectacles; brushes; bunk; corn binks; corn centaury; cornbottle; French pink; happy skies; haw dods; hurtsickle; ragged sailor; bachelor's buttons; blawort; blue poppy; bluebottle; bluets; ragged robin; witches' bells

Upright annual to 75cm, with simple or slightly lobed leaves and solitary deep blue flower-heads 3-4cm across in late spring and summer

cornflower

Scientific classification

Species
cornflower (Centaurea cyanus)
Genus
Centaurea
Family
Asteraceae
Information to be completed
Toxicity
Annual Biennial
Plant type
0.5-1 metres
Height
0.1-0.5 metres
Spread
Deciduous
Foliage
Clump forming
Habit
Spring · Summer
Season of interest
Full sun
Sunlight
Information to be completed
Ideal temperature

cornflower pictures

cornflowercornflowercornflowercornflowercornflowercornflower

Distribution of cornflower

Distribution map

Northern Termperate regions

Information to be completed

Culture

Information to be completed

Toxicity

Information to be completed

Quick identification of cornflower

Information to be completed

cornflower care guide

Moderate regular watering, allowing brief slight drying between soakings
Watering
Full sun
Sunlight
Information to be completed
Ideal temperature

Watering

Moderate regular watering, allowing brief slight drying between soakings

Fertilizing

Balanced perennial feed every four weeks from spring through summer

Pruning

Deadhead regularly to prolong flowering

Propagation

Propagate by seed sown in-situ in spring or autumn

Growing

Grow in well-drained soil in full sun

More growing and care information →

People also ask

Information to be completed

Common pests and diseases

Diseases

May be susceptible to Powdery mildews

Pests

Generally pest-free

Explore the plant health library →

Learn more about cornflower