Winter lettuce is cold tolerant lettuce that I sometimes plant outdoors in the late fall, and cover with a row cover, and harvest during a nice day in the winter.
There are names like winter density, artic king, miners lettuce etc. Bountiful Gardens has a list of more of these.
Thanks, I copied the names of the lettuce and will look on Bountiful Gardens.
On a thread yesterday, one person asked me about the gardening thread and another sent a Freepmail about it, so we will likely get two more people on here asking you to put them on the list.