Description
Container: Closed terrariums are typically placed in a clear glass container with an airtight or mostly sealed lid. The transparency of the container allows you to observe the ecosystem inside.
Substrate: The bottom layer of a closed terrarium is usually composed of small rocks or pebbles, which serve as a drainage layer to prevent waterlogging. On top of the rocks, a layer of activated charcoal is added to help purify the air and prevent odors.
Soil: A layer of potting soil, specifically chosen for the types of plants you intend to grow, is added above the charcoal. This is where the plants’ roots will anchor and obtain their nutrients.
Plants: Closed terrariums are ideal for small, low-maintenance plants like mosses, ferns, air plants, and some succulents. The plants selected should be well-suited to the humidity and limited space within the terrarium.
Water: A closed terrarium is essentially a sealed, self-sustaining ecosystem. After initially watering the plants, the container is sealed, and the water cycle begins. Evaporation from the soil and plants creates condensation on the inner surface of the container, which then drips back down to the soil. This continuous cycle provides the plants with the moisture they need.
Light: Closed terrariums require indirect sunlight or bright, filtered light. Placing them in direct sunlight can lead to excessive heat and moisture buildup, which may harm the plants.