Jantar
Coriander in the UK
Jantar is a good solid maincrop coriander, yielding well. This variety does best when you start it off in a sheltered spot, like a cold greenhouse or cold frame.
Sow window for Coriander generally. In season now.
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How to grow it
Right, for sowing coriander, you're looking at March and April for a spring crop, then again in August and September for an autumn one. Here in the North East, I usually wait till late March, early April, you know, when the soil starts to warm up a bit. You can sow direct outside, about 1-2 cm deep, spacing the seeds about 20 cm apart, or closer if you plan to thin them. Some folks start them off undercover in trays, especially the slow-bolt types, then plant them out later. Just remember, your local climate makes a difference, so adjust those dates a bit for where you are in the UK.
If you've started your coriander indoors, wait until all danger of frost has passed – usually mid to late May up here, earlier further south – before planting them out. Give them a bit of hardening off first, mind, don't just chuck 'em straight out. They like about 20 cm between plants. You can grow them in pots or containers too, if you're a bit short on space, just make sure they've got good drainage. Plug plants are often available if you want a bit of a head start, dead handy.
More Coriander varieties
Track your Coriander 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.