Community gardens are everywhere, from Alaska and the Yukon to Puerto Rico and the Florida Keys.. So, while the organizing part of community gardens has a lot in common regardless of climate, the gardening part is very different. All gardeners are applied ecologists, and we have to grow where we're planted.
With a cold front roaring into the North, many gardeners are well past using row covers now (or am I wrong?)
Down here in North Carolina, I'm still covering my crops, using row cover fabric (Reemay and Agribon are well known brands) over hoops for #9 wire. It's a very useful appropriate technology. Though growth has slowed or stopped due to insufficient light - Elliot Coleman's 'Persephone days' - they keep the quality higher especailly on leafy crops. I'm liking the Batavia-type lettuces, always do, and komatsuma var. Summerfest, which turns out to also be winterfest.
So, cover up, oh say Zone 7 and south, and you can keep eating from the garden. And maybe that works further north too?
One thing that has happened, though - don't see as many folks out in the community garden right now. On the other hand - safely distanced and through our masks, of course, gardeners aint' dumbies - it makes for some good garden gossip, since one person hears a story then passes it on.
So, anybody else using row covers in December?