Last year was my first trying anything with winter sowing, and it was fabulous! I tried it with vegetables and flowers, and was able to fill my garden that way. I was temporarily living in an RV waiting for some house renovations, so I didn't have ANY space to do grow lights.
Onions, leeks, salvias, kale, collards, bachelors' buttons, cilantro, broccoli, Chinese cabbage, regular cabbage, and cauliflower were all sown before March and did well. We were having quite a cold winter, too.
In March and April, I tried all kinds of things, including tomatoes in April. They did well. I had one variety of basil sprout. Two other varieties didn't, but that may have been due to old seeds. They fruited later than the starts I bought at a school plant sale, but they did bear fruit and it was fun to try those varieties out.
I'm in Zone 5B, and I'm getting the winter sowing jugs going as fast as I can this year! We are still using up the multitudes of leeks that came from my one jug last year, so the yields made a winter sowing believer out of me!
