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Centaurea cyanus L.

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» cornflower, bachelors button, bluebottle, boutonniere flower, hurtsickle

Morphology / Appearance

Centaurea cyanus L.

Character recognition:

Plant: growing to 40 - 90 cm (16 - 35 inches) height;
Root: tap root system;
Stem: erect, edge, simple or sparsely branched;
Leaves: linear-lanceolate, 1 - 4 cm long, upper ones entire, lower ones pinnate divided;
Flowers: flowerheads (capitula) cylindrical, 1.5 - 3 cm diameter, ovoid, involucral without striations or slightly ribbed hypsophile, the external lilac top, teeth and the appendix internal triangular blackish brown at the base and brown silver peak; purple tubular flowers and the blue ligulate, rarely white or pink;
Fruits: achenes, 3 mm long, doll arranged in two rows.

Confusion: [...]

Centaurea cyanus
© 2012. Centaurea cyanus L.

Copyright photo © C. Simion ::: 2012 - IASI ::: Centaurea cyanus L.

Ecology / Plant spreading

Centaurea cyanus L.

Bloom time: Jun , Jul , Aug
Flower color: purple, blue, rarely white or pink
Plant type: annual
Light: Sun, Part Shade
Propagation Material: Seeds

Xeromesophilis - mesophilic species, common beech sublevel steppe zone, in winter cereals and ruderal.

Classification

Centaurea cyanus L.

Cultivation / Plant breeding

Centaurea cyanus L.

Cornflower succeeds in the garden common soil, preferring well-drained fertile soil and a sunny position. Shows tolerance to dry soils with low fertility and alkaline. Stabilized plants are tolerant at drought. According to some experts is considered a right associated plant in small amounts of cereal crops. Is sown in March in the greenhouse at the right time to prick out into individual pots and planting is carried out in May. Sowing can be done in situ in April or in areas where winters are not too cold is sown in September and obtained plants are more vigorous and bloom earlier.

 

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Articles about Centaurea cyanus L.
Culinary / Use food. Use Medicinal / Herbal medicine / Use Ornamental