Where I live conditions are not good for most plants apart from the native ones obviously. Summer are hot and dry, with temperatures that reach or exceed 40 C and humidity around 20-40% at around midday. At nights however humidity is around 70% so I don't see how a night mister will help. I suppose my only option is an open water container next to the plant. I just need to keep our dog away from it
Then in the winter, although most days are not too bad, we do get frosts and temperatures at nights drop to -6 and sometimes below that. So I don't think Joshua trees and saguaro cacti would survive that. What's the minimum temperature in the deserts where they live?
See when people hear Greece they assume perfect banana conditions but reality is different. Although I must say that in most parts of Greece the climate is much better, with milder temperatures and more humidity. It's just that I happen to live in a small plain surrounded by high mountains, so no sea effect on the climate, which is continental rather than mediterranean
It's very similar to that of Dallas, Texas, but with less rains and humidity.
Therefore, I am not aiming high. I am not creating a full tropical garden. I'll be happy if I can grow few isolated tropical plants, like bananas, alocasias, bamboo, and perhaps a palm tree. The rest of the garden will be mediterranean. It's just the lure that those wonderful, huge, lush banana leaves have on me..