This is my first year to grow tomatoes and I have started Big Boy from seed. I think I started them too soon because it's early April and they're already over 2 ft. tall. I started them under lights and because they're so tall, I just bought a greenhouse for outside but the overnight temps are only in the 30's & 40's still. So, I just purchased a ceramic heater to keep them warm at night. Now, my question is - do the tomato plants need DIRECT sunlight in order to fruit? The greenhouse has a plastic covering to it that filters out direct sunrays, although it's bright in there. Will I need to move the plants out of the greenhouse to set them in direct sunlight each day? I sure hope not, I've got about 30 tomato plants started that I plan to give away to neighbors and family.