Hi,
seen your "lonely" post there... The plants you mention are basically tropical plants and therefore indoor plants in temperate climates. They do appreciate being outdoors during the summer in most temperate areas though. I fear I don't know much about Fahrenheit and feet. I believe 7000 feet must be about 2300 metres high which is pretty high up in the moutains for them. When I worked in Africa quite a few plants that we consider tropical were still growing at that altitude (2000m) though we were running around in jumpers most of the time (on the other hand it also gets very warm very quickly there... was ideal for tea plantations). But they had cannas, tea, araucaria, tibouchinas, gloriosa superbas...
But that was pretty much near the equator. So I think it may mainly depend on the temperatures you have or will get. Can you give them °C
Regards, Ravenna