I used to grow amazing tomatoes. One year, one grosse lisse plant yielded 57 kilos. From the following season onwards however, every type that I try to grow starts off okay, but after it grows to about 18", the leaves start to go yellow, then brown and papery. I can harvest a few fruit off each plant, but the plant is extinct by the time they ripen. I have tried growing them in potting mix in big pots, but the same thing keeps happening. I live in coastal NSW, Australia where we have a warm temperate climate. I don't have a photo of the problem plants, but I do have one of the amazing grosse lisse plant that we grew. I don't know how to add an image from an iPad anyway.