25 Easy Terrarium Plants for Open or Closed Glass - The Spruce
Artillery ferns are easy to grow, and they will best thrive with minimal care in a closed terrarium, as this plant loves moisture and humidity.
medium to bright indirect light
The friendship plant ( Pilea involuctrata) is prized for its striking deeply textured foliage. It thrives with consistent moisture, warm temperatures, and high humidity, making it a natural choice for closed terrariums. Keep the soil evenly moist and provide this plant with <anchor>medium to bright indirect light</anchor> to keep it happy.