Even though I'm in a zone 5 we usually have very cool temps at night in the summer...around 45-65... because we are in a bit of a 'draw' and it always prevents my tomaotes, etc from doing well. I had the same green tomaotes on the vine for almost 3 months last summer! So,...can anyone recommend to me a seed catalog that sells seeds that like cooler temps? Maybe high altitude seeds? Thanks! (Even put up a greenhouse over the tomatoes last summer...but a high wind 'took care of that'.