Love your greenhouse and all of your plants, Frank. I like your adeniums. I have a few, and need to get more, lol!
My husband built raised beds in the greenhouse and at first I just planted those. Then I found out it was better to have potted plants. If they got spider mites or mealy bugs, I could take them out of the greenhouse and treat them. Treating or spraying off things in the beds was problematic. Our water is hard, and when it hits the polycarbonate glazing, it turns them solid white and it's difficult to clean it off. I had to get rid of the misting system for that reason.