Coriander will self-seed readily. Sow seed in spring in situ  seedlings do not transplant well. The Âseeds are technically the fruit, each containing 2 true seeds. Germination can be improved by rubbing the fruits until the 2 seeds separate. Soak the seeks for 3-4 days, changing the water twice daily, then dry the seeds for 8 hours before planting. Sow seeds about 5mm deep.

One source says they can take a while, about 3 weeks, to germinate. You could soak a new batch as Daisy suggests, but  assuming they're buried no more than ½" deep  I'd give yours another couple of weeks and just make sure the soil stays moist, not dry or soggy.

Thank you all for the tips. I have the seeds separated, soaked and in pots now - so that I won't have to transplant. Now to wait to see if it works.

I took the "in situ" advice and planted the seeds in a pot outdoors. Looks like they have finally germinated and little shoots are sticking out. Hopefully, those are cilantro shoots :)
Thanks all for your advice. Next year, I'll break the seads, soak and start earlier.

All spring I've been wondering what has been eating my seedlings (starting seeds indoors under lights on a heat mat) and why some seeds weren't sprouting. Until I sowed squash seeds and saw holes dug in the soil. I set a mouse trap and the first night I got it. After reseeding I have nearly 100% sprouting, even the coriander and peppers.

Have you double checked if the seeds are still in the soil where you sowed them? LOL

I broadcast the seed of coriander just ten days ago but it has not germinated yet.I am keeping the soil always damp.What should I do to to get it germinated?

Did this work for you? Just curious since I'm having the same problem.

Mice do like coriander seeds. I once pulled several plants and placed them upside down in a paper sack to collect the seed, then left them in my little plastic greenhouse. I'd check on them once in a while as they were dropping seed into the sack and one day I took the plants out and there were no seeds at all. There were however, mouse droppings. It wasn't a fair exchange, IMO.

I once bought a plant from the local nursery and every year since, cilantro has self seeded in my garden. It seems to come up in the oddest places and I am always mystified at how it can grow at one end in my garden and then come up in an entirely different location the following spring.

This year it went to seed early so I scattered some seed and am now using the small sprouts for guacamole. The rest of the seeds on my remaining plant will undoubtedly come up next spring.

So anyway, once you plant it, you probably will never have to do it again.

Coriander seeds do not need: scarifying (breaking the 2 seeds apart is not scarification by the way) or soaking before sowing. The seeds just take a few days to fully imbibe-it's the nature of the seed coat. Breaking or soaking just speeds things up by a couple of days. Everyone seems to be forgetting the most important thing here since these are warm climate seeds- HEAT. They will germinate eventually at room temperature but if you can keep the soil at 25°C, you will speed things up a lot.

I live in Hawaii - warm year round. I have been trying and trying to germinate coriander seed, but no luck. After potting soil didnt work, I even tried germinating in pure vermicast. Seed depth 1/4 inch, I am planting in a pot, a few inches apart. The seeds are SAnto Cilantro organic seeds by High Mowing Seed Co

Cilantro is the plant that produces the seed named coriander, I grow cilantro every year from seed indoors and outdoors. The seed needs moisture and warm at all times. If you are having troubles with germination try seeding in 6 or 9 pack trays with 2 to 3 seeds per cell, then place tray inside a clear plastic bag and place bag in a warm temperature location, checking for germination and moisture. Cilantro is very easy to grow, but remember that coriander seeds need moisture and a temperature about 18 to 24 celsius to germinate.

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Correction: Cilantro is Spanish for coriander.