Air plants do not care in the slightest how you position them. Right way up, sideways, upside down. They evolved to cling tenaciously to any surface and so long as you keep them well lit and well watered, they’ll thrive. Air plants vary in size depending on their species, ranging from dainty delights to sprawling alien wonders. With such a variety to choose from, it’s simply a matter of choosing which air plant is best for you!