Onion Seeds
Allium cepa
Grow Onion from seed.
Sowing guide
- Difficulty: intermediate
- Sowing depth: 10 mm
- Method: Direct sow where it is to grow
- Germination: 7-14 days
- Days to harvest: 150-210 days
- Best sown in: autumn, winter
- Seed storage life: 1 year
- Packet: approx. 200 seeds
When to sow by region
Prefer to skip the wait? See the full plant — including potted and advanced sizes, care and growing conditions — on the Onion plant page.