Full sun to part shade in the hot weather
Exotica has the white powdery coating on her leaves, ( farina )
It helps to keep moisture in the plant in times of drought, which is handy so you don't need to water these ones as often. It also acts as a sunscreen reflecting UV rays.
So the less you touch this one the better if your like me and like them flawless otherwise you'll leave your finger prints and smudge marks all over her.