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Rhamphospermum nigrum

Brassica nigra

Also called Black mustard, Mustard

Rhamphospermum nigrum
Photo: Walther Otto Müller, Public domain

Black mustard is an annual herb of the cabbage family, grown mainly for its dark seeds used as a spice and for its oil. The key to growing it is moist, fertile soil and full sun in cool weather, as it bolts quickly in heat.

Family
Brassicaceae (Cabbage family)
Grows as
Annual
Light
Full sun
Water
Keep soil evenly moist, especially while the plant is growing.
Soil
Moist, fertile, well-drained soil.
Temperature
Cool to mild conditions suit it best; protect from hard frost and extreme heat.
How easy
Easy
Safety
Not known to be toxic
Edible
Yes, some parts

About

Rhamphospermum nigrum (syns. Mutarda nigra, Brassica nigra, and Sinapis nigra), black mustard, is an annual plant native to cooler regions of North Africa, temperate regions of Europe, and parts of Asia. It is cultivated for its dark-brown-to-black seeds, which are commonly used as a spice.

Where it grows

It is native to tropical regions of North Africa, temperate regions of Europe and parts of Asia.

Uses

The plant was used as a condiment more than 2,000 years ago; it was mentioned by the Roman author Columella in the 1st century CE. The plant leaves were also pickled in vinegar. In 13th-century France the seeds were ground and used. They were mixed with unfermented grape juice (must) to create "moût-ardent" ("burning must"). This became later "moutarde", or mustard in English.

Other Brassica plants

Abyssinian mustard · Mustard · Zha cai · India mustard · Rutabaga · Rapeseed · Tatsoi · Gai lan · Cauliflower · Cabbage · Brussels sprout · Kohlrabi

Text excerpted from the Wikipedia article Rhamphospermum nigrum 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.

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