The first seedlings of the year

The first seedlings of the year appeared yesterday.  They're tomato seedlings - Shirley, Sungold, and a trial cherry tomato free from D.T. Browns.  I had to take the glass off the top of the plant pots, and I was worried the seedlings might flop overnight due to the cold weather (we had a mild frost), but they survived fine.  It's hard to believe those tiny little plants will eventually yield lots of juicy red tomatoes.