I have some beautiful heirloom tomato plants in my garden, all different varieties. They look beautiful and have nice blossoms, but the blossoms won't set into fruit. In fact, I don't even see any pollen on any of the flowers or when I brushed up against them. My plants are sucker free, and I've only fertilized them twice with Peters tomato food. What's going on?
Has it been hot, cold, rainy? Weather affects pollination. It sometimes helps to go out and lightly brush the flower stems with you hand. Tomatoes self pollinate for the most part but if it's too hot the pollen gets too sticky to drop down or other weather factors can make it difficult for the flower to pollinate. I'm sure more expert southern growers can give you some hints. Your plants should pollinate in time.