Here in the Missouri Ozarks near Salem I’ve grown grown Seminole Pumpkin (from Southern Exposure Seed Exchange) with great success. About 2 plants out of 21 succumbed to squash bugs with no spraying. The rest lived on and the resulting pumpkins all lasted over a year at room temp in our house (72-75). Many lasted over a year and a half and the last of them just over two years. They get less sweet and more starchy the longer stored for sure. I tried a cushaw type from Baker Creek, “Illinois”, and it did terrible. Some plants survived, but the resulting squash where just eaten up by bugs, squash bugs all over them, trails all over the skins, rotting easily. The couple I saved from the bugs and peeled all the nasty skin off didn’t taste good, very bland, and they were very watery.