My first sowings, planted out, just went to seed with no substance worth cutting. I have potted up my second sowing into 3 inch pots but they look like they are going the same way. I found on the internet today that you should not try transplanting coriander! And they seem to sow it thick in situ without any thinning. So I have sowed a couple of big pots with the rest of my seeds today. I will be interested to see the results. They also seemed to feed a lot so I will try that too.