Cornflower

At a Glance

Common name

Cornflower

Scientific name

Centaurea cyanus

Family

Asteraceae

Region

Europe

Plant part

Flowers (petals)

Caffeine

Caffeine Free

Evidence

Insufficient

Safety review

Safety information on file

Botanical Description

A slender upright annual with narrow grey-green lance-shaped leaves and a single fringed bright blue thistle-like flower head with ruffled outer petals and a darker center; the petals are the part used.

Also known as: Bachelor's Button, Bluebottle, Corn Bluet

Historical Background

Cornflower has been a beloved blue flower of European grain fields for centuries, gathered for gentle eye and digestive teas. Its ruffled blue petals are a favorite of botanical tea blends, lending color and a mild, floral cup.

Earliest recorded uses: European folk traditions for centuries; a beloved field flower and gentle eye-comfort herb.

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Flavor & Aroma

Aroma: Floral, mild, slightly sweet, green

Tea Preparation

Modern Evidence

Cornflower has a long European tradition as a gentle eye and digestive herb. Clinical evidence is insufficient; it is not a treatment for eye disease, conjunctivitis, or any condition, though it remains a popular, beautiful tea ingredient.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.