Q.When To Plant Winter Garden In Zone 7
zip code 95642

Certified GKH Gardening Expert
Your zone will be 9a and 9b. You will have quite a bit more variety than zone 7, and a longer growing season. Most recommend starting seeds indoors BEFORE the first frost date for a transplant in February. It can be a little more complicated than that, though. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/projects/early-winter-garden-chores.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/mild-winter-gardening-tips.htm
https://www.gardeningknowhow.com/special/spaces/the-winter-garden.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-9-10-11