This year I decided to grow alot of new varieties I started them all from seed and all are doing good except for my litchi tomato it's getting huge it's all ready 5+ feet tall and produced beautiful flowers like crazy but NONE of them e set fruit. I have two plants in the same cage in my raised bed taking up about a 2x2ft. Is there some special was to get these to set fruit? Can I use bloomset (calcium spray)? Or do I have to hand pollenate? I see plants of. Bees on them gong aft the pollen but every time the little flowers just dry up and fall off. :-(