| Heirloom Onion | |
| Oinion |
| Plant Habit: | Fern |
| Life cycle: | Other |
| Minimum cold hardiness: | Zone 7a -17.8 °C (0 °F) to -15 °C (5 °F) |
| Maximum recommended zone: | Zone 4b |
| Inflorescence Type: | Compound |
| Underground structures: | Bulb |
| Dynamic Accumulator: | Cu (Copper) Mo (Molybdenum) Si (Silicon) |
| Conservation status: | Extinct in the Wild (EW) |
