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About Corn Cockle

Agrostemma githago, the corn cockle, is a slender annual wildflower native to the eastern Mediterranean that was once one of the most common weeds of European grain fields. Growing 60 to 100 cm tall on slim, silvery-hairy stems, it produces elegant funnel-shaped flowers of magenta-pink to pale lilac, each decorated with fine dark lines radiating from the center. The flowers nod gracefully on long stems, giving the plant an airy, romantic quality in cottage garden plantings. Once so abundant that its toxic seeds contaminated flour and caused widespread poisoning, modern agriculture has virtually eliminated it from the wild, making it now more common in gardens than in grain fields. The seeds contain the saponin githagin, which is toxic to humans and livestock when consumed in significant quantities — historically, bread made from heavily contaminated grain caused symptoms of poisoning. Today, corn cockle is grown as a nostalgic cottage garden annual and wildflower meadow component, valued for its ethereal beauty and historical significance.

• Pollinator-friendly
• Cut-flower
• Fast-growing
• Long-blooming

How to care for Corn Cockle

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At a Glance

Bloom time

Fragrance

Toxicity

History

Agrostemma githago is native to Europe and western Asia, from the British Isles and Iberia east through the Caucasus and into Iran. For millennia it was one of the most common weeds of European grain fields — growing alongside wheat, rye, and barley with an eerily similar seed size and seedling appearance that made it almost impossible to remove during hand harvest or pre-modern seed cleaning. The seeds contain githagin and related saponins that are moderately toxic: chronic consumption of corncockle-contaminated bread flour caused the historical "corncockle poisoning" (also called "githagism") — a gastrointestinal and nervous complaint recognized in European medical literature from the medieval period through the early 20th century, characterized by weakness, vertigo, GI upset, and sometimes death in severe cases of contaminated-flour consumption. Modern 20th-century grain-cleaning technology — sieves, air-flow separators, gravity tables — effectively separates corncockle seeds from grain, and by approximately the 1960s-70s the species had largely disappeared from European commercial wheat fields.

Its disappearance has been so complete that it is now listed as endangered or near-extinct as a wild grain-field plant in the UK, Germany, Poland, and several other European countries — a striking transformation from noxious common weed to conservation priority within less than a century. It is still widely grown from seed as a pretty meadow-style garden annual with magenta-pink five-petaled flowers. Corn cockle was so intertwined with European grain farming that its toxic seeds were a genuine public health hazard for centuries.

Before modern seed-cleaning technology, bread made from contaminated wheat could cause digestive illness and, in extreme cases, death. The plant was specifically targeted by agricultural improvement campaigns in the 19th century and was largely eradicated by herbicides in the 20th century. Ironically, its near-extinction from farmland has made it a conservation priority in parts of Europe. The name 'cockle' comes from Old English 'coccel,' meaning a weed among grain. In the Bible, the plant is referenced in Job 31:40: 'Let thistles grow instead of wheat, and cockle instead of barley.' Today it is cherished by gardeners who appreciate its elegant flowers and bittersweet agricultural history.

Symbolism & meaning

Related plants

Plants with similar care

• Chinese AbeliaAbelia chinensis
• Fragrant AbeliaAbelia mosanensis
• Large-Flowered AbeliaAbelia uniflora
• Glossy AbeliaAbelia x grandiflora

Frequently asked questions