A closed terrarium suits plants that prefer hot, moist environments, whereas open terrariums suit plants that prefer drier environments.
The plants for your terrarium must also suit the type of terrarium you have selected. A closed terrarium suits plants that prefer hot, moist environments, whereas open terrariums suit plants that prefer drier environments. Closed terrarium plants ideally prosper with limited airflow, since they’re airtight for the majority of the time.