Sorry to hear that Caroline. Which blue tomato is it? I grew Indigo Rose last year and the plants were loaded with fruit but it took forever for them to get ripe and I really didn't care for the taste. I have grown OSU Blue for a few years in the past and I thought it tasted better.
I had seeds for several varieties? might be Dancing with Smurfs?
I'll try again next year. I would like to try crossing some of these with Purple Smudge to try for a larger blue tomato.