Posted: 11/01/2018 at 22:08
I think you are missing the point here. If "seasonal gardening" doesn't work for you then you either invest in a commercial type growing environment or you forget it.
It matters not that you are in the USA or any other area. i'd suggest the climatic conditions have altered for all of us - at least over the last 15 or 20 years. You have to learn to go with what you have - none of us can do any more than that.
If, as you say, you aren't interested in things which grow in your area, you need to expend some time and effort in making a suitable environment for those things which you want to grow. Nothing to do with buying plants on line or your inability to do so,
You mention orchids and Nepenthes. Both can be grown here in the UK given suitable conditions - decide what you want, look up all the info for the conditions you need to supply and away you go.
Trying to grow anything which you are unable to sustain is not only a complete waste of money and time, it leads to frustration - not good for anyone