When to sow Celeriac in the UK
Celeriac is sown relative to the average last frost, so the right week depends on where in the UK you garden.
Sowing and harvest dates by region
Celeriac is timed from the average frost dates, so its timings shift across the UK. Plot works them out from the Midlands and Lowland Wales baseline using Met Office average frost dates.
| Where you are | Sow indoors | Plant out | Harvest |
|---|---|---|---|
| South West Coast and Cornwall | late January to late March | mid April to early May | late August to late February |
| South Coast and Channel | early February to late March | late April to mid May | early September to late February |
| Greater London (Urban Heat Island) | late January to late March | mid April to early May | late August to late February |
| South East and Home Counties | late February to mid April | early May to late May | mid September to mid March |
| East Anglia | late February to mid April | mid May to early June | late September to late March |
| Midlands and Lowland Wales | early March to late April | late May to mid June | early October to late March |
| Wales and West Coast | late February to mid April | early May to late May | mid September to mid March |
| Northern England | mid March to early May | late May to mid June | early October to early April |
| Scotland Lowlands and Central Belt | late March to early May | early June to late June | mid October to mid April |
| Scotland Highlands and Islands | mid April to late May | late June to mid July | early November to early May |
| Northern Ireland | late February to mid April | mid May to early June | late September to late March |
| Channel Islands and Isle of Man | late January to mid March | mid April to early May | late August to mid February |
Growing notes
Sow indoors in March or April and plant out in late May or early June once it is properly warm; it needs at least six months and consistently damp soil, so skip it on a dry, free-draining plot. Extremely hardy once established and can be dug through to spring.
At a glance
- Spacing
- 30 cm between plants
- Row spacing
- 45 cm
- Plants per m²
- 9
- Days to maturity
- 200 days
- Yield per plant
- 0.6 kg
- Sun
- Full
- Frost tender
- No
- Grows in a container
- Yes, 30 litres or more
- Minimum soil depth
- 30 cm
- Balcony rating
- 2 out of 5
What usually goes wrong
- celery leaf miner
- bolting after a cold check
- slugs
- drying out
Companion planting
Grows well near
Keep away from
Related guides
Timings cross-checked against RHS guidance for celeriac.