I have been extremely fortunate that with in the past 2 weeks that I haven't had frost in my immediate vicinity. 2 days ago I was at a friends place to pick something up at 7:15 in the morning and he had a honest to goodness frost on his lawn. He's located about 7 miles northeast of me. I haven't had the make shift green house over the plants for quite some time, so, maybe I should go buy a lottery ticket for the luck I've had. Anyway, the weather starting to change for the better in a serious way now and I should start seeing some good growth from the plants, finally.
Seeing how far along the plants are from when I first started them makes me think that there's no need to start any earllier then mid april if I'm starting outdoors like I normally do.