Centaurea cyanus · Asteraceae

Cornflower

✅ Pet-friendlyAnnual, completing its life cycle in one year.30 to 60 cm

LightFull sun

WaterModerate watering; avoid waterlogging.

DifficultyEasy

ColdWithstands light frosts down to minus 5 degrees Celsius.

Full sunModerate watering; avoid waterlogging.EasyWithstands light frosts down to minus 5 degrees Celsius.

Description & origin

The Cornflower is an annual herbaceous plant known for its vibrant blue flowers. It is often used in gardens for its beauty and ease of cultivation. Its prolonged blooming attracts pollinators such as bees and butterflies.

Size

Can reach up to 60 cm in height under ideal conditions.

Foliage

Deciduous foliage that disappears in winter.

Flowering

Blooms abundantly in spring and summer.

Detailed care

Light

Prefers full sun for optimal growth.

Soil

Well-drained and slightly fertile soil.

Watering

Moderate watering, avoiding waterlogging.

Temperature

Tolerates cold well but prefers temperate climates.

Fertilising

Fertilize once a month during spring and summer.

Repotting

Transplant when seedlings reach about 10 cm.

Pruning

Remove wilted flowers to encourage new blooms.

Propagation

Easily propagated by seed.

Common problems

Powdery Mildew

Fungus causing white spots on leaves. Treat with appropriate fungicide.

Aphids

Insects that suck sap, weakening the plant. Control with natural insecticide.

Root Rot

Caused by excess water. Improve soil drainage.

Uses & curiosities

In the garden

Attracts pollinators
Ideal for borders
Suitable for wildflower gardens

Other uses

Used in floral arrangements for its vibrant color.

Did you know…

Historically, Cornflower was used in traditional remedies to treat eye inflammations.