S.Rodgers wrote:
Has anyone done this?


I have done it, with seedling trays (in the US, they are ftX1ftX2inches
plastic containers for growing seedlings) filled with compost (no
seedling containers, just the tray full of dirt). Mesclun grew well and
could be cut almost a couple of times. Of course mesclun will do well
in a part-sun situation.

But, my experience has been that various types of greens grew at
different rates, so I was eating the arugula first, then the tatsoi,
then the rest. It was a pain to cut without damaging the tender growth.
Now I grow it in separate mini-plots in my garden, mixing two or three
types when I cut them. Many of those greens are also adept at
naturalizing in the garden (most notably miner's lettuce, tatsoi,
arugula, mache, peppergrass), so I make sure I let some of them go to
seed, then spread the seeds randomly in the beds. I get extra mesclun
for free that way. Also, they all suffer from being seeded too thickly,
so the new arrangement gives much bigger plants for all greens.