Hey welcome to the forum! I see you're situated in a similar zone as I am. Jackfruit would do ok indoors, but it would get too big. You would need a greenhouse. I had a seedling go to 12 ft in less than a year. Even with my greenhouse I simply don't have space for them. If you have any questions about zone pushing or what I grow or you want some plants don't hesitate to send me a pm!