Tillandsia, also known as "air plant," is an epiphyte. This means that it doesn't need soil, but, instead, obtains water and nutrients from the air. You grow Tillandsia not by planting it in a pot, but by mounting it to a board, tile, or other object, or by growing it in a special Tillandsia planter, which is usually just a glass hanging globe with holes in it to increase air flow.
