Closed Terrariums
How to care for your Closed Terrarium
Here are some specific tips for maintaining and caring for the houseplants inside the closed terrarium:
Observation: Regularly observe the terrarium to monitor its internal conditions. Look for signs of excess moisture, such as fogged-up glass or condensation. If you notice excessive condensation, consider leaving the lid slightly ajar for a short time to allow some moisture to escape and prevent mould or fungal issues.
Watering: Closed terrariums create a self-sustaining ecosystem, and the moisture inside is recycled through a process called transpiration. Watering is generally required less frequently compared to other houseplants. Only water the plants when the soil appears dry or when the plants show signs of drooping or stress. Use a small watering can or a spray bottle to add water, and avoid overwatering, as this can lead to root rot.
Pruning: Trim any dead or yellowing leaves to maintain the overall health and appearance of the plants. If any of the plants grow too large and start touching the glass, consider pruning them to maintain a comfortable distance.
Light: Ensure the terrarium receives bright, indirect light. Placing it near a window with filtered sunlight is often ideal. Avoid exposing it to direct sunlight, as it can cause the temperature inside the terrarium to rise too high.
Fertilisation: Closed terrariums often require very little or no fertilisation due to the recycling of nutrients within the ecosystem. It's best to avoid fertilising unless you notice signs of nutrient deficiency, such as yellowing leaves or stunted growth. If needed, use a diluted, balanced liquid fertiliser sparingly.
Rotating: To ensure even growth of the plants, periodically rotate the closed terrarium to expose all sides to light. This will prevent the plants from leaning toward the light source and help maintain a balanced appearance.
Terrarium cleanliness: Keep the glass walls of the terrarium clean and free from dust and debris to allow optimal light penetration.
Propagation: If any of the plants outgrow the terrarium or start crowding other plants, consider propagating them to keep the ecosystem balanced. You can propagate certain plants by taking cuttings and replanting them in the same or other suitable containers.
Remember that closed terrariums are relatively self-sustaining, but they still require some attention and care. Be patient and observe how the plants respond to their environment. Adjust watering and other care routines as needed based on the condition of the plants and the terrarium's internal environment. With proper care, your closed terrarium can become a beautiful, self-contained garden to enjoy indoors.