Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Shallot — Growing reference
| Scientific name | Allium cepa var. aggregatum |
|---|---|
| Soil temperature for germination (°C) | 10–23.9 |
| First harvest or flowering (days) | 90–120 |
| Measured from | Transplant |
| Plant spacing (cm) | 15.2–20.3 |
| Mature height (cm) | 30.5–45.7 |
| Mature spread (cm) | 10.2–15.2 |
| USDA hardiness zones | 3–10 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | Bulb |
Growing directions
Separate shallot clusters into individual cloves and plant each with the tip just at or slightly above the soil surface, 1 in deep, in fertile, well-drained soil. Each clove multiplies into a cluster of 6–12 new bulbs by season's end, so generous spacing pays off. Harvest when most of the green tops have toppled and turned papery. Dry clusters on screens in good airflow for 2–3 weeks and store in a cool, airy spot; well-cured shallots keep for 6 months or more.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0