Centaurea cyanus · Asteraceae

Cornflower

✅ Pet-friendlyAnnual life cycle, completing its cycle in one season.30 to 61 cm

LightFull sun

WaterMedium

DifficultyEasy

ColdResistant down to -5 degrees Celsius.

Full sunMediumEasyResistant down to -5 degrees Celsius.

Description & origin

Centaurea cyanus, commonly known as Cornflower, is an annual herbaceous plant. It is famous for its vibrant blue flowers that attract pollinators.

Size

Maintains an upright habit, reaching up to 60 cm in height.

Foliage

Leaves are narrow and dark green, forming a dense base.

Flowering

Blooms during summer, producing button-like flowers that open into large blooms.

Light

Prefers full sun but tolerates some shade during the hottest hours of the day.

Soil

Well-drained soil rich in organic matter is ideal for its growth.

Watering

Water moderately, allowing the soil to dry between waterings.

Temperature

Resistant to mild temperatures but should be protected from severe frosts.

Fertilising

Add a balanced fertilizer in spring to promote healthy growth.

Repotting

Transplant carefully to avoid damaging the roots, preferably in spring.

Pruning

Remove wilted flowers to encourage continuous blooming.

Propagation

Easily propagated by seeds, which can be sown directly into the soil.

Fungal diseases

May be susceptible to fungi, especially in excessively humid conditions.

Pests

May be attacked by aphids and mites, which should be controlled quickly.

Wilting

The plant may wilt if it does not receive enough water or if the soil does not drain properly.

In the garden

Other uses

Dried flowers can be used in floral arrangements.

Did you know…

This plant was traditionally used as a symbol of love and devotion. The flowers are edible and can be used in salads.