Air plants (Tillandsia) are unique, soil-free bromeliads that grow by anchoring to trees, rocks, or other surfaces and absorbing water and nutrients through tiny leaf hairs called trichomes. Native to the southern U.S., Central, and South America, they thrive in bright, indirect light and good airflow. Most bloom once with a vibrant flower spike, then produce "pups" that grow into new plants. To care for them, soak fully in water every 1–2 weeks, let dry quickly, and use rain or filtered water for best results.