Welsh onion: when to sow, plant out and harvest
Also called: Bunching onion.
Sowing, planting and harvest dates for your climate, good and bad companions, growing tips.
When to sow in your region
Average dates, computed from the frost dates of each climate. For your exact dates, choose your town.
| Climate | Sow outdoors | Harvest |
|---|---|---|
| Northern France | 1 March – 30 April; 1 August – 31 August | 1 June – 31 October |
| Atlantic coast | 19 February – 20 April; 5 August – 4 September | 22 May – 4 November |
| Eastern France | 21 February – 22 April; 30 July – 29 August | 24 May – 29 October |
| Mediterranean | 18 January – 19 March; 21 August – 20 September | 20 April – 20 November |
| Mountains (around 1,000 m) | 26 March – 25 May; 30 June – 30 July | 26 June – 29 September |
Growing
- Family
- Amaryllidaceae
- Latin name
- Allium fistulosum
- Between rows
- 20 cm
- In the row
- 10 cm
- To harvest
- 90 days
Companion planting
The level of evidence is shown for each pairing: many rest on tradition rather than on studies.
Good neighbours
No documented pairing.
Keep apart
No documented pairing.