I intend to try to grow chard and lettuce outside in the cold frames but we have already had night temperatures below freezing. Some years our freezing temperatures arrive in Feb. Not this year - much earlier freezing nights this year.
Gardening enthusiasts as far north as Canada are sowing seeds in the winter so Zone 7 should be easy. Maybe.
Here are a few online resources (I left out the links with unending popups, ads, or the need to "join for a small fee" to access the conversation or information.)
So! Share your winter seed sowing experiences. What's worked for you and what are you planting this winter?