Garlic Mustard

Alliaria petiolata

Native to:
Afghanistan, Albania, Algeria, Austria, Baltic States, Belarus, Belgium, Bulgaria, China, Corse, Cyprus, Czechia-Slovakia, Denmark, East Aegean Is., Finland, France, Germany, Great Britain, Greece, Hungary, India, Iran, Iraq, Ireland, Italy, Kazakhstan, Kirgizstan, Krym, Lebanon-Syria, Morocco, Myanmar, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Palestine, Poland, Portugal, Romania, Russia, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Brassicaceae
Genus:
Alliaria
Species:
Alliaria petiolata
USDA Symbol:
ALPE4

Growth Characteristics

Life Cycle:
Annual | Biennial
Growth Habit:
Forb/herb
Height:
120 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
apr,may,jun
Bloom Colors:
white

Reported Fauna Sightings

Bees: Black and (Bombus auricomus), Brown-belted bumble (Bombus griseocollis), Common eastern (Bombus impatiens), Eastern Carpenter Bee (Xylocopa virginica), Two-spotted bumble (Bombus bimaculatus) Butterflies:American Lady (Vanessa virginiensis), Falcate Orangetip (Anthocharis midea), Red Admiral (Vanessa atalanta), Small White (Pieris rapae), 🛑West Virginia white (Pieris virginiensis)

Garden & Ecology Notes

Deer Resistant:
Yes
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
prefers shaded woodland areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds require cold stratification for 30-60 days to break dormancy; germinate best in cool, moist conditions.