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Hairy Rocket

Erucastrum gallicum

Please keep in mind that it is illegal to uproot a plant without the landowner's consent and care should be taken at all times not to damage wild plants. Wild plants should never be picked for pleasure and some plants are protected by law.
For more information please download the BSBI Code of Conduct PDF document.


Plant Profile

Flowering Months:
Brassicaceae (Cabbage)
Also in this family:
Alpine Pennycress, Alpine Rock-cress, American Wintercress, Annual Wall Rocket, Austrian Yellowcress, Awlwort, Bastard Cabbage, Black Mustard, Bristol Rock-cress, Charlock, Common Scurvygrass, Common Whitlowgrass, Coralroot, Creeping Yellowcress, Cuckooflower, Dame's-violet, Danish Scurvygrass, Dittander, Early Wintercress, Eastern Rocket, English Scurvygrass, Evergreen Candytuft, False London Rocket, Field Pennycress, Field Pepperwort, Flixweed, Garden Arabis, Garden Candytuft, Garden Cress, Garden Radish, Garden Rocket, Garlic Mustard, Glabrous Whitlowgrass, Gold of Pleasure, Great Yellowcress, Greater Cuckooflower, Greater Periwinkle, Greater Swinecress, Hairy Bittercress, Hairy Rock-cress, Hairy Whitlowgrass, Hedge Mustard, Hoary Cress, Hoary Mustard, Hoary Stock, Hoary Whitlowgrass, Honesty, Horseradish, Hutchinsia, Hybrid Watercress, Intermediate Periwinkle, Isle of Man Cabbage, Large Bittercress, Lesser Swinecress, London Rocket, Lundy Cabbage, Marsh Yellowcress, Mountain Scurvygrass, Narrow-fruited Watercress, Narrow-leaved Bittercress, Narrow-leaved Pepperwort, Northern Rock-cress, Northern Yellowcress, Oilseed Rape, Perennial Rocket, Perennial Wall Rocket, Perfoliate Pennycress, Pinnate Coralroot, Purple Rock-cress, Pyrenean Scurvygrass, Rock Whitlowgrass, Russian Rocket, Scottish Scurvygrass, Sea Kale, Sea Radish, Sea Rocket, Sea Stock, Shepherd's Cress, Shepherd's Purse, Small-flowered Wintercress, Smith's Pepperwort, Steppe Cabbage, Swede, Sweet Alyssum, Tall Rocket, Thale Cress, Tower Mustard, Treacle Mustard, Trefoil Cress, Turnip, Wall Whitlowgrass, Wallflower, Wallflower Cabbage, Warty Cabbage, Watercress, Wavy Bittercress, White Mustard, Wild Cabbage, Wild Candytuft, Wild Radish, Wild Turnip, Wintercress, Woad, Yellow Whitlowgrass
Life Cycle:
Maximum Size:
1 metre tall
Fields, roadsides, wasteland.

Yellow, 4 petals
The flowers appear in clusters at the top of the plant. The sepals are erect.
Cylindrical, beaked pods.
An annual flower with pinnately lobed leaves. The leaves are hairy.
Other Names:
Common Dog Mustard, French Mustard, Wild Mustard.
Frequency (UK):

Other Information


Erucastrum gallicum, also known as French mustard or Wild mustard, is a species of flowering plant in the family Brassicaceae. It is native to Europe, Asia, and North Africa, and typically grows in a variety of habitats including roadsides, fields, and waste places. The plant is an annual herb that can grow up to 1m tall and has large, lobed leaves and yellow flowers that bloom in the spring and summer. The plant is considered a weed in many parts of the world due to its invasive nature and its ability to outcompete native plants. The seeds are used as a spice, and the leaves and flowers are edible, they have a pungent and spicy flavor. The seed oil is also used for culinary purposes.


If you're interested in botany, then you may have come across a plant known as the Hairy Rocket or Erucastrum gallicum. This plant is a member of the Brassicaceae family, which includes other common plants like cabbage, broccoli, and mustard.

The Hairy Rocket is native to Europe and is commonly found in fields, meadows, and along roadsides. It is an annual plant, meaning it completes its life cycle in one growing season. The plant grows to be about 1-2 feet tall, with branched stems and narrow leaves that are covered in small hairs, giving it a fuzzy appearance.

The flowers of the Hairy Rocket are small and white, with four petals arranged in a cross shape, typical of plants in the Brassicaceae family. The flowers bloom in the late spring and summer, and are followed by small, elongated seed pods.

One interesting aspect of the Hairy Rocket is its edibility. The leaves of the plant are slightly bitter, but can be used in salads, much like other leafy greens. The seeds of the plant are also edible and have a slightly nutty flavor. However, it is worth noting that the Hairy Rocket does contain small amounts of glucosinolates, which can be harmful if consumed in large quantities. As with any wild plant, it is important to do your research and make sure you are harvesting and consuming the plant safely.

In addition to being used as a food source, the Hairy Rocket has also been used in traditional medicine. The plant is said to have diuretic and digestive properties, and has been used to treat a variety of ailments, including urinary tract infections and digestive issues.

Overall, the Hairy Rocket is an interesting and useful plant that can be found in many parts of Europe. Its unique appearance and edible qualities make it a popular choice for those interested in foraging and wild foods. Whether you're interested in the Hairy Rocket for its edible or medicinal properties, it is a fascinating plant to learn about and explore.

The Hairy Rocket is an important part of the ecosystem in which it grows. As a member of the Brassicaceae family, it is related to many important agricultural crops, such as canola, and plays a similar role in providing habitat for pollinators and other beneficial insects. In addition, the plant has a shallow root system, which helps to stabilize soil and prevent erosion.

Like many wild plants, the Hairy Rocket is threatened by habitat loss and changes in land use. As more and more land is developed for agriculture or urbanization, the natural habitats in which the Hairy Rocket grows are being destroyed. This, in turn, can lead to a decline in pollinators and other important insects that rely on these plants for food and habitat.

To protect the Hairy Rocket and other important wild plants, it is important to maintain and restore natural habitats. This can be done by preserving existing natural areas, such as meadows and fields, and by planting native wildflowers and other plants that provide habitat for pollinators and other beneficial insects.

In addition, it is important to educate people about the importance of wild plants and their role in the ecosystem. This can be done through educational programs, community outreach, and by encouraging people to get out and explore the natural world around them.

The Hairy Rocket is a versatile plant that has been used for various purposes throughout history. For example, it has been used as a dye plant, with the seeds producing a yellow dye that can be used on fabrics and textiles. Additionally, the Hairy Rocket has been used as a companion plant in gardens, as it is believed to repel certain pests and attract beneficial insects.

The plant has also been studied for its potential use in phytoremediation, a process in which plants are used to remove pollutants from soil and water. The Hairy Rocket is known to be tolerant of heavy metals and other contaminants, and has been shown to have the ability to absorb and break down these pollutants.

Another interesting aspect of the Hairy Rocket is its role in folklore and mythology. In some cultures, the plant has been associated with love and fertility, and has been used in traditional love potions and charms. In other cultures, the plant has been associated with death and has been used in funeral rites.

Studies have shown that the Hairy Rocket contains various bioactive compounds that may have health benefits. For example, the plant is high in antioxidants, which can help to protect the body from oxidative stress and prevent cell damage. In addition, the plant is a good source of flavonoids, which are plant compounds that have anti-inflammatory and anti-cancer properties.

Furthermore, the Hairy Rocket is a good source of vitamins and minerals, including vitamin C, vitamin K, and calcium. Vitamin C is an important nutrient for immune system function and skin health, while vitamin K is important for bone health and blood clotting. Calcium is important for bone health and muscle function.

While the Hairy Rocket is generally considered safe for consumption in small amounts, it is important to be cautious when harvesting and consuming wild plants. In addition, the plant may interact with certain medications, so it is important to consult with a healthcare provider before using the plant for medicinal purposes.

In conclusion, the Hairy Rocket is a fascinating plant with a rich history and many potential uses. Whether you are interested in the plant for its edible, medicinal, or ecological properties, it is a plant worth exploring and learning about. However, as with any wild plant, it is important to approach it with caution and respect, and to be mindful of any potential safety concerns.

Distribution Map

Reproduced by kind permission of the BSBI.

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