My green house is starting to work again. I should explain. In December and January, the best I hope for is keeping everything alive. In addition, I can usually continue to harvest thyme, mint and oregano for part of that time.
Other than that, I go into maintenance mode. Actually, I ignore it.
But it has been a mild winter for us. Well, mild in temperature. Where I live it starts to rain about November and quits sometime around May. This picture was from last year. No snow this year.
But at some point I get to start to think of seed starting. I can get to 60 or 70 some days and stay above 40 at night. I've got a little heat in it. If it isn't completely overcast and raining, I can get a little solar gain happening.