Cornflower botanical plate

Herb. No. 254 · Asteraceae

RangeFig. atlas
Approximate native range — a teaching atlas, not a survey

European grain-field annual; a garden escape and a cut-flower row.

Native · Europe

Native Also grown
LegalGentleplant

Cornflower

Centaurea cyanus

Garden flowersKitchenFlowersHarvestCompanions

The true-blue field flower of old grain — edible petals, a cut stem, and an insectary that does not mind poor soil.

Cornflower is the blue of European wheat fields before clean seed and herbicides. Petals color tea and sugar, mildly, and garnish a salad. The plant is an easy annual for a cut-flower row and a brassica edge: bees and hoverflies work it, and it does not want rich dirt. Double bedding types are a bouquet; single field types feed more insects. It is not spotted knapweed or the other thugs in Centaurea.

Flavor

Faintly spicy, faintly grassy. A color more than a taste.

Parts used

Petal · Flower head

Helpful

  • True blue
  • Poor-soil annual
  • Edible garnish and a vase stem

Cautions

  • Short vase life if cut late
  • Can seed around
  • Doubles feed fewer insects

Field assistant

Ask about traditional use, safety, or the law. The assistant will not teach illegal cultivation or give medical orders.

Related symptoms

Harvest this plant

When to cut, how to dry, and how to store it — garden and kitchen crops only.

Open harvest notes

Companion planting

19 to plant with.

Open companion beds