How to Set Up Water Plant Closed Terrarium

A closed terrarium is a mini-ecosystem in a jar, where plants thrive in a self-contained environment. Water plants are ideal for terrariums as they love moisture and humidity. Building your own closed terrarium is an easy and rewarding project. Here's how:

Materials Needed:

A clear, sealable glass jar or container

Pebbles or stones

Activated charcoal

Potting soil

Water plants like ferns, moss, or aquatic plants

A spray bottle

Steps:

1. Choose your container

The ideal container for a water plant terrarium is a clear glass jar or container that can be sealed with a lid. It should also be big enough to accommodate the plants you want to grow. The larger the jar, the easier it will be to create a stable environment for your plants.

2. Layer the bottom of the container with pebbles or stones

Using small pebbles or stones, create a layer at the bottom of the container. This will serve as the drainage layer for excess water. It will also prevent the soil from sitting directly on the bottom of the container, which can cause stagnant water and root rot.

3. Add a layer of activated charcoal

Add a thin layer of activated charcoal over the stones. Activated charcoal will help filter the water and prevent odors caused by decomposing organic matter.

4. Add potting soil

Add enough potting soil to create a layer at least two inches deep. The soil should be moist, but not waterlogged. You can use any organic potting soil or a mix of soil and sand for better drainage.

5. Add water plants

Choose the water plants you want to grow in your closed terrarium. Ferns, moss, and aquatic plants like Java Moss, Marimo or Water Sprite are ideal. Place them in the soil, spacing them out according to their size and growth habits. Be gentle with the plants and avoid damaging their roots.

6. Mist the plants with water

Use a clean spray bottle to mist the plants with water. The mist will help distribute the moisture in the environment evenly. The goal is to keep the terrarium slightly moist at all times, without creating waterlogged soil.

7. Close the lid and place in a bright spot

Once you are satisfied with the placement and moisture levels, close the lid on your terrarium. Place it in a bright spot but away from direct sunlight. Direct sunlight can overheat the terrarium and kill the plants. A bright, but indirect spot will help create the right level of warmth and light for the plants to thrive.

Caring for Your Water Plant Terrarium

Caring for your closed terrarium involves a little attention, but it's not difficult. Here are some tips to keep your terrarium healthy and thriving:

Mist the plants with water every few days to maintain moisture

Remove any dead or decaying plants, so they don't rot and create odors

If the terrarium becomes too moist or waterlogged, open the lid to allow excess water to evaporate until the soil is slightly dry again

If the terrarium becomes too dry or the plants start wilting, mist them with water and close the lid to trap the moisture

If algae start growing in the terrarium, reduce the light intensity by moving it away from the window or using a sheer curtain to filter the light

If the terrarium becomes overcrowded, remove some plants and repot them in a separate container

A water plant closed terrarium is a great way to bring a touch of nature into your home. It's easy to set up and care for, and it can make a beautiful and unique decorative addition to any room. Follow these steps and tips, and you'll have a thriving mini-ecosystem in no time!