Plant terrariums aren't just decorative—they're also a fascinating biological system that combines science, aesthetics, and sustainability. Let's take a closer look at what's really happening in that glass universe on your windowsill.
Ecosystem in miniature
The water cycle in miniature
When your terrarium comes into contact with light, water evaporates from the plants and the soil. This water vapor condenses on the glass and drips back down, continuously hydrating your plants without needing to water.
Oxygen & CO₂: a breathing balance
Plants convert light into energy through photosynthesis, producing oxygen in the process. At night, they draw oxygen from the air and release some CO₂—a subtle cycle that keeps itself balanced.
No springtails, but a robust system
While some terrariums use microfauna to break down organic matter, ours don't. Thanks to the right mix of substrate, activated carbon, and moss, the ecosystem is kept stable and odorless—without any additional creatures.
Light is life
Place your terrarium in a bright spot, but out of direct sunlight. Too much heat can disrupt the ecosystem. With the right light level, the plants thrive and the cycle remains intact.
Layer upon layer: the foundation of a healthy ecosystem
A successful terrarium is like a house with a solid foundation. Each layer plays a crucial role:
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Drainage layer : at the bottom there is often a layer of hydro grains or pebbles that collect excess moisture.
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Activated carbon (charcoal) : this layer helps neutralize odors and prevents mold growth.
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Substrate/potting soil : This is where your plants will take root. It should be airy, nutritious, and moisture-regulating.
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Moss and decoration : moss acts as a natural moisture regulation system, while decorative stones or wood provide structure and aesthetics.
Plants with superpowers
Our plant terrariums contain plants like Fittonia and small ferns. These plants adapt to the conditions within the glass and together create a stable habitat.
Build your own ecosystem — with a DIY kit
A terrarium is a living, miniature ecosystem in glass. And the best part? You can build it yourself—layer by layer, plant by plant. On our website, you'll find complete kits that make it easy to create your own green world.
