Ann, I have tried to grow tomatoes for years on the front of my house under an overhang, on the south front. They do wonderfully there and we do eat some, but if they have not ripened by September 5, say, we must pick them and ripen them indoors. So, now it is main tomato crop under 6 ml plastic, it lasts for years, UV resistant I think. Yes, it is the late season blight, our nights by the end of August are dewy and very cool, perfect black blight!!!! Have a beautiful day, great life, great health. Cindi