I can handle cold spells for a while, it goes with the territory. When you live in Ohio, you learn to expect that in February. Now by April I don't handle it well, but in February it's OK, the snow on the ground is gone and the end is in sight.
I haven't even checked out what tomato seeds I have. I might but a new one or two to try, always fun. I never do them until late March, or even April sometimes.
Karen