I have 6 tomato plants and am getting a fair yield but not as good as last year. BUT---one plant is 7' tall, trained on twine and looks healthy and robust. It's supposed to be some "Heirloom" variety and the little picture on the soil stick looked like a Beefsteak. My other plants are all different. I have lightly fertilized with Scotts Flower and Vegetable 10-10-10.
I haven't gotten a single fruit! I've seen a couple of flowers but they just died and fell off. I do remove suckers at 1" or less. I've always had reasonable crops for decades, what is with this plant?