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Large bullwort

Ammi majus

Also called Bishopsweed, Greater Ammi, Laceflower, Lady’s Lace, Queen Anne's lace, Bullwort, Bishop's Weed

Large bullwort
Photo: Johann Georg Sturm (Painter: Jacob Sturm), Public domain

Ammi majus is an annual (sometimes biennial) in the carrot family, grown for its lacy white umbels. It is usually grown from seed sown in place, and it needs full sun and well-drained soil.

Family
Apiaceae (Carrot family)
Grows as
Annual
Light
Full sun
Water
Water regularly while establishing, then allow the top of the soil to dry between waterings.
Soil
Well-drained, average to poor soil; tolerates lean ground.
Temperature
Grows well in temperate conditions; frost-tender, so sow after the last frost. Specific limits not given.
How easy
Easy
Safety
Toxic: The plant contains furanocoumarins (bergapten and xanthotoxin/methoxsalen) that cause photosensitivity; contact followed by sun exposure can cause serious skin inflammation (phytophotodermatitis).. Toxic to cats and dogs (ASPCA).
Native range
Macaronesia, Medit. to S. Turkmenistan and Arabian Pen.
Climate
temperate

About

Ammi majus, commonly called bishop's flower, false bishop's weed, laceflower, bullwort, etc., is a member of the carrot family Apiaceae. The plant, which has white lace-like flower clusters, has a large distribution through Southern Europe, North Africa and West and Central Asia, though it is hypothesized to be native to the Nile River Valley.

How to grow it

Like its close relative Ammi visnaga, A. majus and its cultivars are frequently seen in gardens where they are grown from seed annually. The species and the cultivar 'Graceland'

have both gained the Royal Horticultural Society's Award of Garden Merit.

Where it grows

Considered indigenous to Egypt, or parts of Europe and the Middle East/West Asia. It is also found scattered in the British Isles, in North and Central Scotland, widely distributed in the Mediterranean region (including Southern Europe and North Africa), as well as West Africa and Abyssinia.

Uses

In Egypt around 2000 BC, the juice of Ammi majus was rubbed on patches of vitiligo after which patients were encouraged to lie in the sun. In the 13th century, vitiligo was treated with a tincture of honey and the powdered seeds of a plant called "aatrillal," which was abundant in the Nile River Valley. The plant has since been identified as A. majus, but the trade name Aatrillal is still used today to refer to the yellowish-brown powder made from its seeds.

Text excerpted from the Wikipedia article Ammi majus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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