Cornflower.

De un vistazo

Nivel de cuidados

Fácil

Tipo de planta

Annual

Luz

Full sun

Luz en interior

Sol directo

Riego

Cada 3 a 7 días

Tamaño adulto

3 feet

Ritmo de crecimiento

Rápido

Rusticidad

USDA 2 a 11

Floración

Late spring to mid summer

Cuidados

Sow seeds directly in the garden where they will get plenty of sun. Keep the soil moist until they sprout and watch for aphids during the growing season. Deadheading spent blooms will encourage the plant to keep producing flowers.

Riego

Water regularly to keep the soil consistently moist but not waterlogged.

Abonado

Apply a balanced liquid fertilizer once a month during the active growing season.

Poda

Remove faded flowers frequently to promote continuous blooming.

Trasplante

As annuals, these plants complete their life cycle in one season and do not require repotting.

Suelo

Well draining loamy soil

pH del suelo

6.0 to 7.5

Temperatura

-15 a 30°C

Humedad

40 a 70%

Tolerancia a la sequía

Moderada

Longevidad

Annual, typically 1 year

Resistencia a ciervos y conejos

Moderada

Seguridad

Personas

This plant is generally considered non-toxic to humans.

Niños

The seeds are small and could pose a choking hazard if ingested by young children.

Alérgenos por contacto

Some individuals may experience mild skin irritation from handling the stems.

Alérgenos en el aire

Pollen can trigger seasonal allergies in sensitive individuals.

Comestibilidad

While the petals are edible, ensure they are grown without pesticides before consuming.

Cómo identificarla

• Vibrant blue ray florets
• Lance shaped gray green leaves
• Slender branching stems
• Papery bracts around flower base

Altura

0,3 a 0,9m

Anchura

0,2 a 0,4m

Hojas

gray-green, deciduous

Flores

blue, pink, white, purple, 3 a 5cm

Problemas frecuentes

• Rust — Fungal infection causing orange spots on the undersides of leaves.
• Aphids — Small insects that cluster on new growth and suck plant sap.

Cómo cultivarla

Propagación

seed

Cuándo plantar

spring, autumn

Cuidados en invierno

In mild climates, autumn sown seeds will overwinter as small rosettes. In colder areas, the plant will die back completely after the first hard frost.

En maceta

They grow well in pots at least 20 centimeters deep with well draining soil.

Plant these in blocks to provide a strong visual impact and better support for visiting pollinators.

Buenas compañeras

• Field Poppy — They share similar growing requirements and create a classic meadow look.
• Garden cosmos — They bloom at the same time and provide a lovely contrast in form.

Especies parecidas

• Centaurea montana — It is a perennial relative with similar flower shapes.

Ciencia

Familia

Asteraceae

Género

Centaurea

Orden

Asterales

Clase

Magnoliopsida

Distribución natural

Europe

Conservación

It is not of conservation concern and is widely naturalized.

It is an opportunistic annual that thrives in disturbed soils and sunny meadows.

Valor para la fauna

nectar source

Polinizadores

abejas, mariposas

Usos

cut flowers, pollinator gardens, edible garnishes

Taxonomía cotejada con GBIF.

Lo que más preguntan

Do I need to deadhead them?

Yes, removing spent blooms encourages the plant to produce more flowers throughout the season.

Can I grow them in pots?

They thrive in containers as long as they have good drainage and plenty of sunlight.

De dónde viene el nombre

The name Centaurea comes from the Greek myth of the centaur Chiron, who used the plant to heal a wound. Cyanus refers to the deep blue color of the petals.

Bueno saberlo

• The intense blue pigment is highly prized in the cosmetic industry.
• It was the favorite flower of John F. Kennedy.
• These flowers are a traditional symbol of the Estonian national identity.
• They are very easy to grow from seed directly in the garden.