Max Wright wrote in message ...
[...]
Where are you? I can only speak from North London experience. Here I
find it's still well worth sowing winter spinach, oriental mustards,
chicories, winter lettuce and other salad leaves such as land cress,
lamb's lettuce and

claytonia.

Some of these may benefit from protection
with fleece or plastic.

I've never got round to growing claytonia (aka "miner's lettuce", I
believe, because it will grow on the kind of soil often found round
coal-pits). Is it worth it?

Mike.