Hi! My son wanted to grow a small vegetable garden this summer next to my annual/perennial flowers. His tomatoes don't seem to be doing well. We are new to vegetable gardening and are not sure what is going on and hoping for your help. It started with the leaves in the bottom, so he trimmed anything that was touching the ground It now seems to be moving up the other vines. He seems to be getting fruit on the vines, but it doesn't really seem to be ripening. I had heard they need cool nights to help with the ripening but I wasn't sure iif that was true. We have been watering overhead, could that be part of the problem? Is there anything we can do to help save his harvest? It also seems to be effecting all his tomato plants. I have included a couple of pictures. We appreciate any help or advise you can give us. Thank you!