I have eight tomato plants (5 different heirloom varieties), and they're all doing great except for my two Prue tomato plants. These are a paste tomato variety. They're technically *growing* steadily, that is, they've increased in size, blossomed, and put out more leaves, but the stems and leaves are very weak, as if they have wilted. They continue to grow, but they just look sickly. I thought it might be not enough water, but they're getting plenty, and they don't seem to change no matter how much water I give them. Also, they haven't yet set fruit, while all my others have. I did have to transplant these from one location in the ground to another after I realized that they were not receiving enough sun at their first location, but it's been a couple months now since then, and they were quite small at the time of transplant. I did my best not to damage the roots during transplant, but could this still be the cause? Anyone have this problem before?