Mary, sorry for the confusion -- I don't plants seeds in flats and leave them in the GH over the winter; but yes, they would certainly need some watering. I gave winter sowing a shot last year, using kitty litter jugs, putting the jugs outside with the tops off so they would get snowed and rained on, and while some things did sprout well that way (some didn't, but I tried a lot of stuff that I wasn't sure about so i didn't expect everything to come up) I actually thought it was more hassle than just starting seeds under lights in late winter/early spring. I
have planted things in my hoop house in the fall, in the ground, some of which survived the winter and started re-growing in the spring.
Hoop house
Greenhouse (when it was first put up in 2003)
