Black Garlic

Allium nigrum

Native to:
Algeria, Baleares, Bulgaria, Cyprus, East Aegean Is., France, Greece, Italy, Kriti, Lebanon-Syria, Libya, Morocco, Palestine, Portugal, Sicilia, Spain, Tunisia, Türkiye

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Amaryllidaceae
Genus:
Allium
Species:
Allium nigrum
USDA Symbol:
ALNI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
90 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun
Bloom Colors:
white, purple, pink

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Prefers sunny locations in its native range

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate best with cold stratification followed by warm temperatures. Light may aid germination.

ORGHPS Germination Guide: Sow @ 20C 6 wks then 4C 6 wks then slowly raise to 10C 6 wks. Repeat if no germination.

Source: Ontario Rock Garden & Hardy Plant Society