I don't know about your cold climate, Joanne. I sow my seeds around March, and keep the containers in morning sun. I would guess you could sow them around late March, and they'll germinate when they reach adequate temps.
That said, if I were you I'd just experiment with a few, and continue to grow most under lights as you usually do. Just in case
I just don't know how well the WSown ones would do in such a cold climate.
Also, if we get a frost/freeze after my seeds are up, I do give them extra protection overnight by throwing a blanket over them. I do that for toms as well as tender annuals.
Karen
