Air plants, or Tillandsia species, are some of the easiest to care for houseplants. We call them “air plants” because of their tendency to live on tree branches instead of in soil. Tillandsia plants are epiphytes, meaning that they absorb water through their leaves instead of through roots. This is thanks to being covered in tiny white hairs called “trichomes,” which catch water particles from the air and hold water to their surface. The natural environment for air plants is humid southern climates, growing in the crooks and crevices of tree branches under a dappled canopy. The perfect in-home environment for an air plant is lots of humidity, making terrariums a great option, as well as plenty of bright, indirect light.