A picture of a Cornflower

Cornflower

Centaurea spp.

Buy Cornflower

Also known as

Centaury, Centory, Starthistle, Knapweed, Loggerhead, Hardheads

Asteraceae - Centaurea triumfettii by Hectonichus (CC BY-SA 3.0)

Full Sun
Light watering
Frost Hardy

H4

RHS hardiness

-10°C

Minimum temperature

Expected size

Height
Spread

Max

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Cornflower

A photo of Cornflower
A photo of Cornflower
A photo of Cornflower
A photo of Cornflower
A photo of Cornflower

Buy Cornflower on Candide

See all
Centaurea 'Silver Feather' 3lt Perennial

GardenBeautyuk

Centaurea 'Silver Feather' 3lt Perennial

£11.99

Grow Your Own Edible Flowers Seed Collection

PurpleBloomSeeds

Grow Your Own Edible Flowers Seed Collection

£16.89

Free delivery

Cornflower Overview

Centaurea is a large genus consisting of over 730 species of hardy herbaceous annual and perennial plants, typically found in dry habitats. Species in this genus are only found north of the equator, mainly in the Middle East and some are common in the UK where they are found in grassland, pastures or meadows. They are considered weedy plants as they readily colonise and dominate large areas. Flowers resemble thistles, they are produced in a range of colours including blue, red, yellow and white.

Common problems with Cornflower

How to propagate Cornflower

Seed

Division

You can propagate by seeds or division in the autumn or spring.

Special features of Cornflower

Attractive flowers

Attracts bees

Attracts useful insects

Many Centaurea species are very rich in nectar and serve as a food source to numerous insects.

Other uses of Cornflower

Grown for the flower heads that each have a thistle like centre surrounded by a ring of slender ray petals. Suitable for coastal conditions.

Summer Blooms for pollinators - Top 20

A choice of the best summer flowering plants for pollinators.

Explore all

Looking Good In May - Top 10

Traditionally flowering in May, these flowers will be at their best this month.

Explore all