Here's a bit of info I had no knowledge about! Interesting! -
Air plants (also called Tillandsia) need no soil because water and nutrients are absorbed through the
leaves. The roots are used as anchors only. Reproduction is by seeds or
by offsets called "pups". A single plant could have up to a dozen pups. Temperature is not critical. Air plants are a primary ingredient in an herbal supplement to treat pollen allergies.