Onion (Allium cepa)
Species Onion (Allium cepa)
The onion, also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical variety of the onion which was classified as a separate species until 2011. The onion's close relatives include garlic, scallion, leek, and chives.
At a glance
- Lifecycle
- Biennial
- Germination temperature
- 1.7–35 °C
- Ideal germination temperature
- 23.9 °C
- Germination time
- 6–12 days
- Time to harvest
- 90–125 days
- Frost limit
- −4 °C