Crops › Celeriac › President RZ
President RZ
Celeriac in the UK
Known for its large bulbs and excellent storage qualities. If you want to keep your celeriac going through the winter months, this is a cracking option.
Sow window for Celeriac generally.
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How to grow it
Celeriac is one for starting off indoors, like I say in the app notes. You'll want to get your seeds going in February or March, pop them onto the surface of some seed compost and just gently cover 'em with a smidge more. They need a bit of warmth to get going, around 15-20°C, so a propagator or a warm windowsill is just the job. Don't sow too many, they take up space for a while.
Once your seedlings are big enough to handle, prick them out into individual pots. They grow slowly, you see. You can buy plug plants if you're a bit late or just fancy an easier life, they're common now. Before planting out on the plot, harden them off properly for a couple of weeks, then get them in the ground after the last frost, usually mid to late May up here. Give 'em about 30 cm between each plant.
More Celeriac varieties
Track your Celeriac from packet to plate
Sowing reminders and harvest forecasts for your own frost dates, the Seed Tin, Scan Centre for any label or packet, and the Potty Mouth Garden Club. Free to start.
Allotment keeper in the North East of England, the voice behind the Tony C Smith YouTube channel, and the gardener who built GrowMore CookMore. Club numbers on this page update as members log their plots. Last updated 3 September 2026.