Uh-oh tomatoes

I planted my tomato seeds in the basement about two weeks ago, maybe a few days more than two weeks. I was a week late planting them, but figured with the propagation mat and grow lights they would catch up. So far, of the 25 or so seeds that I planted, only four have germinated. Oops. And they're tiny. And none of the pepper plants have germinated. Nor the asparagus. I will be very sad (not to mention discouraged) if I have to abandon my Mountain Princess and Green Zebra tomatoes, among others. If they don't get growing soon, I'll go buy some two foot tall plants from a nursery so that I can have tomatoes by August. But they won't be as good...they won't be old, hard to get varieties. Scott says my seedlings will be good for next summer. Hmm...I wonder if I can keep them growing in the basement for a whole year?