Can anyone shed light on why my plant's aren't producing any tomatoes? I have 4 heirloom beef steak plants (grown from seed) that are 4 - 5 ft tall, seem very healthy and have ton's of blooms but after months of blooming, still no fruit! I've tried to stress them a bit, pruned them a little and try to keep the suckers off but still nothing! Maybe the soil is too rich and they're just happy to keep growing!