I live in Manhattan, New York City (Hardiness zone 7b). I don't have any outdoor space (although I do a lot with window boxes. I have a space where I want to put an arbor and grow a vine, but it is indoors in a location that rarely gets direct sunlight (though it gets a lot of indirect due to a sky light and large north-facing window). Steam heat and no air conditioning means the space is dry and drafty in the winter and hot and humid in the summer. I've see articles about indoor vines, but they usually specify zone 8 or higher. Can you recommend vines that can grow in such non-direct sunlight, indoor conditions this far north?
Indoor, Non-Direct Sunlight Vines for Zone 7b
Certified GKH Gardening Expert
You can grow any of those zone 8 vines indoors as well. The zone only refers to temperature. It is unlikely that it will get as cold as your true zone inside so you are not limited here. In fact, these will be a much better fit than zone 7 plants, as those will actually require some of those colder temperatures to go dormant.
In the long run, you will be best off using those vines for the higher zones.