Allium unifolium
American Garlic · American Onion · One-leaf Onion · Oneleaf Onion
About the plant
What it is and where it grows — not part of any germination protocol.
- Habit
- bulbous geophytePlants of the World Online
- Habit
- Perennial, Forb/herbPLANTS Database
- Flower
- Bright pinkFlora of North America
- Native range
- California, Mexico Northwest, OregonGBIF Backbone Taxonomy
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: Plants of the World Online — Royal Botanic Gardens, Kew; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.
Worth knowing
- Despite its name, the one-leaf onion usually has two or three leaves. It grows in the coast ranges of California, Oregon and Baja California, often on clay and serpentine soils. Wikipedia: Allium unifolium
Protocol
DerivedN. C. Deno, 1998Difficulty Low
Cold moist stratification
Temperature: 40°F 4°C
Germination happens during step 1; time not stated, 21 days assumed.
100% germination.
How each step is done, in Deno’s words, and what Verified and Derived mean.
Germination trials
Readers’ own records of sowing this species, published after review. Share your trial · All trials
No trials shared for this species yet.