Garlic mustard
Also known as jack-by-the-hedge, hedge garlic, Alliaria petiolata
Quick answer
A wild plant of the cabbage family, Alliaria petiolata, whose leaves and seeds taste peppery and of mustard. Its seed, found in cooking residues on Baltic pottery about 6,000 years old, is the oldest direct evidence of food being seasoned in Europe.
- Tastes of
- mustardy, peppery, garlicky
- Heat
- See below
Other names
What this spice is called elsewhere, and where the translation is not clean.
česnovka
Slovenian
Flavour and aroma
Strongly peppery and mustard-like.
Pungent, of mustard and garlic, from volatile aglycones in both leaves and seed.
Taste, smell and sensation, channel by channel
Smell, taste and the chemical sense of heat and cold are different senses. Each is listed with the compounds evidenced as producing it.
Sensation
- Pungency — Allyl isothiocyanate · how it works
Crushed garlic mustard leaf releases allyl isothiocyanate from sinigrin — the same pungent compound as black mustard — together with allyl thiocyanate and an epithionitrile.
Heat
Pungency scale: isothiocyanate content
Peppery and mustard-hot.
Preparation and use
A wild, mustard-hot leaf for spreads and salads; in prehistory, a seed cooked with fish and meat.
Storage and freshness
| Form | Good for | Conditions | Fridge |
|---|---|---|---|
| Fresh | Not established | Refrigerated and used within days. | Yes |
Quality is not the same as safety
Wilting is a quality matter, not a safety one.
Forms
The form the sources describe, and so the one this page is about.
Fresh leaves and young shoots
Gathered and used fresh in spreads and salads.
Botany
Brassicaceae
The cabbage and mustard family.
Leaves and young shoots today; the seed in the prehistoric finds.
Commonly confused with
Another wild European leaf that tastes of garlic, but an allium. Garlic mustard is a crucifer whose pungency is the mustard kind.
How it is grown
The plant, how it is propagated and farmed, what threatens the crop, and where it is produced now. Crop diseases here are plant health, not food safety.
Not a crop. A wild plant gathered from hedges and woodland edges for its leaves; no source describes it being cultivated, so there is no crop to describe.
Where it comes from and how it is made
Europe to Central Asia, northern India and western China.
History and trade
Phytoliths in charred food residues on western Baltic pottery of about 6,100 to 5,750 years ago, found with the remains of marine and land animals, matched only garlic mustard seed among more than 120 reference plants. The seed has a strong flavour and little food value, so the authors read it as the earliest direct evidence of food being seasoned in prehistoric Europe. One sample, from Stenø in Denmark, predates farming there; they cannot say whether the habit arrived with farming or was older.
Claims we do not accept at face value
“The phytoliths are certainly garlic mustard.”
under review
They are consistent with garlic mustard seed and with no other plant in the reference collection of more than 120 species; that is a strong identification by elimination, not a proof.
What archaeology has found
Each find with what survived, how it was identified and how firmly. A find shows the plant was present; what it was used for is the excavators’ reading.
About 6,100 to 5,750 cal BP · Neustadt, Germany, and Åkonge and Stenø, Denmark — the western Baltic
Neustadt, Åkonge and Stenø: Alliaria petiolata (garlic mustard), seed
Phytoliths were isolated from 26 of 74 charred deposits inside cooking pots from three sites, and were far more abundant inside the pots than on their outer surfaces. The globular sinuate form occurred in eight samples, at 1 to 33 per milligram; most are from the coastal site of Neustadt, on both hunter-gatherer and early farming vessel types. The same crusts held fats of marine and land animals.
How it is read:Garlic mustard seed has a strong peppery flavour and little food value, so the authors take its presence in pots with fish and meat as the first direct evidence of food being seasoned in prehistoric Europe. They cannot say whether the habit arrived with farming or was already local.
Phytoliths · Probable identification · identified by Globular sinuate phytoliths compared with a reference collection of more than 120 European and Asian plants; an equivalent form was found only in garlic mustard seed. · dated by Radiocarbon on the food crusts and on associated charcoal and bone. Crusts with marine ingredients may read up to 600 radiocarbon years too old; the Stenø context has a single date.
In the wider history of spices
c. 6100–5750 years ago · Western Baltic (Denmark and northern Germany)
Garlic mustard in Stone Age cooking pots
Phytoliths consistent with garlic mustard seed were found in charred food residues on pottery from hunter-gatherer and early farming sites of the western Baltic, in pots that also held residues of fish and meat. The seed has strong flavour and little nutritional value, which is the argument that it was there for taste; the analysts call the finds the first direct evidence of the spicing of food in prehistoric Europe.
Archaeological evidence
Contested: The plant is identified by the shape of its phytoliths, which the analysts call consistent with garlic mustard seed after comparing more than 120 species; that is a match, not a certainty. "First" is their claim for their own find, and the residues from the coastal site are hard to date closely because fish and other marine foods make radiocarbon dates read too old.
Culture
Recorded by tradition rather than merged into one narrative — these are genuinely different practices.
Slovenia
Leaves and young shoots used in spreads and salads, though rarely named in a Slovenian survey of wild food plants.
- In spreads
- In salads
Poland
Among the wild seasonings a few Polish respondents said they had taken up only in the last ten years.
Prehistoric western Baltic
A historical setting: prehistory, the western Baltic.
Seed cooked with fish and meat in pots of hunter-gatherer and early farming communities.
- Seed cooked with fish and meat
What we do not know
Published openly. A gap we have named is more useful than a gap we have filled with plausible prose.
Not yet established for garlic mustard:
- Propagation
- Historical timeline
- Ceremonial use
- Traditional medicinal context
- Regulatory limits
- Traditional uses