Yes Mart, we all start when we start and I find on the dug beds of the experiment that they are into full swing, catching up the undug, by midsummer, i.e. halfway through, and growth is good before that anyway…
It sounds a great deal and I am pleased for your tunnel salads. I have found that Green in the Snow has had an excellent winter, better than last year, whereas Red Frills suffered a bit, though most plants survived, especially the later planted ones (20th October rather than 10th).