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Photograph of Cornflower
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Cornflower

Centaurea cyanus

  • Layer 4 · Herbaceous
  • Attracts pollinators

Status by region

No restrictions recorded in the lists we checked.

Checked against the European Union list (Regulation 1143/2014) · Portugal's national invasive species list (Decreto-Lei 92/2019).

Information based on the cited sources, not legal advice — always confirm your local rules.

About

An annual plant native to Europe, notable for its vibrant blue flowers that attract numerous pollinating insects. It improves the biodiversity of vegetable gardens and pairs perfectly with meadow areas and flower strips. Tolerates poor soils and short periods of drought.

It is harvested now — July is one of the harvest months.

See which trees the cornflower grows well with

We have no trees recorded with this species yet. Start from the tree on your land.

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Needs

  • Water: Low
  • Light: Full sun
  • Size: Annual herb up to 0.8 m
  • Mature diameter: 0.3 m
  • Soils: Loam, Sandy, Limestone
  • Climates: Atlantic coast, Inland / Continental, Hot, dry Mediterranean

Calendar

  1. January
  2. February
  3. March — Planting
  4. April — Planting
  5. May — Harvest
  6. June — Harvest
  7. July — Harvest
  8. August — Harvest
  9. September — Planting
  10. October — Planting
  11. November
  12. December
  • Harvest
  • Planting

Medicinal use: The petals are edible and used in infusions to relieve eye inflammation and throat irritation.

Where to buy

Related plants

Other species in the same layer or with the same function.

It is harvested now — July is one of the harvest months.

See which trees the cornflower grows well with

We have no trees recorded with this species yet. Start from the tree on your land.

See the central trees

No account needed.

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