Celeriac should be ready to harvest this month. Check for size and colour.
Growing Calendar
This month: Oct
Log to journalReady to harvest now
- •Check size and ripeness
- •Harvest regularly
- •Store or use fresh
Watch Out For
Celery leaf miner tunnels pale blotches into leaves. Remove and destroy affected leaves as soon as you see them, and cover young plants with fine mesh
Slugs shred young seedlings and transplants. Protect with copper tape, beer traps or torchlit evening patrols until plants are established
Roots stay small if the soil dries out at any point in summer. Mulch thickly after planting and water deeply during dry spells
Common Questions
About growing Celeriac in the UK
Why is my celeriac not swelling into a proper root?
Small or absent roots are almost always down to a dry spell at some point in the season, or plants started too late to build up size before autumn. Sow by mid-March, keep watering consistent all summer, and mulch to hold moisture in.
Is celeriac hard to grow from seed?
Yes, it's one of the trickier vegetables to start. Seeds are tiny, need light and warmth to germinate, and can take up to three weeks to show. A heated propagator and patience make the biggest difference.
When should I harvest celeriac?
From October onwards, once roots reach a reasonable size, usually tennis-ball size or larger. It's very hardy and can be left in the ground and lifted as needed right through to March.
Can I use celeriac leaves?
Yes, the leaves taste similar to celery and can be used sparingly to flavour stocks and soups, much like celery leaf, though the flavour is stronger.
Written from real growing experience, organic methods only. Our story · Our approach
Members
Track your celeriac from sowing to harvest in My Garden.
