Choose a country to see content specific to your location

A picture of a Cornflower


Centaurea spp.

Also known as

Centaury, Centory, Starthistle, Knapweed, Loggerhead

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

Full Sun
Light watering
Frost Hardy


USDA zone


Minimum temperature


More images

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


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.



Special Features

Attractive flowers

Attracts bees

Attracts useful insects

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