Yes, you can put your air plant in a terrarium. Terrariums are enclosed spaces that can help to create the right conditions for plants to grow. If you’re going to put your air plant in a terrarium, be sure to choose one that is large enough for the plant to grow and has good airflow. Additionally, you’ll need to provide your air plant with the right amount of light and water. Too much or too little of either can lead to problems for the plant. With proper care, however, air plants can thrive in terrariums.