Terrarium Supplies: Essential Items for Beginners

christian benbow
Sep 29, 2025
4 min read

Creating a terrarium can be a delightful and rewarding experience. These miniature gardens are not only beautiful but also a great way to bring a bit of nature indoors. If you are new to the world of terrariums, you might be wondering what supplies you need to get started. In this post, we will explore the essential items for beginners, making it easy for you to create your own little green oasis.

What is a Terrarium?

A terrarium is a glass container that houses plants, soil, and decorative elements. It can be open or closed, depending on the type of plants you choose. Terrariums are perfect for those who want to enjoy gardening without needing a lot of space. They can thrive in various environments, making them suitable for homes, offices, or even classrooms.

Essential Supplies for Your Terrarium

Before you start building your terrarium, it is important to gather the right supplies. Here are the essential items you will need:

1. Glass Container

The first item on your list is a glass container. This can be anything from a simple jar to a more elaborate terrarium globe. The size and shape of the container will depend on the plants you want to include.

Tip: Choose a container with an opening large enough for you to reach in and arrange the plants.

2. Drainage Layer

A drainage layer is crucial for preventing water from accumulating at the bottom of your terrarium. This layer helps to keep the roots of your plants healthy and prevents rot.

Materials: You can use small pebbles, gravel, or activated charcoal for this layer.

3. Activated Charcoal

Activated charcoal is another important component. It helps to filter the air and keep the terrarium fresh. This is especially important in closed terrariums, where air circulation is limited.

Usage: Spread a thin layer of activated charcoal over the drainage layer.

4. Potting Soil

Next, you will need potting soil. This is where your plants will grow. Make sure to choose a soil that is suitable for the type of plants you are using.

Tip: Look for a soil mix that retains moisture but also drains well.

5. Plants

Choosing the right plants is one of the most exciting parts of creating a terrarium. You can select from a variety of small plants, such as succulents, ferns, or moss.

Tip: Make sure the plants you choose have similar light and water requirements.

6. Decorative Elements

Adding decorative elements can make your terrarium unique. You can include small figurines, stones, or even colored sand.

Tip: Keep it simple to avoid overcrowding the space.

7. Tools

Having the right tools can make the process easier. Here are some tools you might need:

Tweezers: Great for placing small plants or decorations.
Spoon or Scoop: Useful for adding soil or gravel.
Watering Can: A small one with a narrow spout is ideal for watering your plants.

8. Light Source

Depending on the plants you choose, you may need to provide additional light. If your terrarium is in a low-light area, consider using a grow light.

Tip: Make sure to follow the light requirements for your specific plants.

Step-by-Step Guide to Building Your Terrarium

Now that you have gathered all your supplies, it is time to build your terrarium. Follow these simple steps:

Step 1: Prepare Your Container

Start by cleaning your glass container. This will ensure that your terrarium looks its best.

Step 2: Add the Drainage Layer

Pour a layer of small pebbles or gravel into the bottom of the container. This should be about an inch deep.

Step 3: Add Activated Charcoal

Next, sprinkle a thin layer of activated charcoal over the drainage layer. This will help keep your terrarium fresh.

Step 4: Add Potting Soil

Now, add a layer of potting soil on top of the charcoal. This should be deep enough to accommodate the roots of your plants.

Step 5: Plant Your Greens

Using your tools, create small holes in the soil and place your plants inside. Make sure to space them out to allow for growth.

Step 6: Add Decorative Elements

Once your plants are in place, you can add any decorative elements you want. This is where you can get creative.

Step 7: Water Your Terrarium

Finally, give your terrarium a light watering. Be careful not to overwater, as this can lead to root rot.

Step 8: Place Your Terrarium

Find a suitable spot for your terrarium. Make sure it gets the right amount of light for the plants you have chosen.

Caring for Your Terrarium

Once your terrarium is set up, it is important to care for it properly. Here are some tips to keep your plants healthy:

Watering

Water your terrarium sparingly. The closed environment retains moisture, so you may only need to water it every few weeks.

Tip: Check the soil moisture before watering. If it feels damp, wait a bit longer.

Light

Ensure your terrarium gets the right amount of light. If you notice your plants stretching towards the light, they may need more exposure.

Pruning

As your plants grow, you may need to prune them to keep the terrarium looking tidy. Remove any dead leaves or overgrown stems.

Cleaning

Periodically clean the glass to keep it clear. This will allow more light to reach your plants.

Troubleshooting Common Issues

Even with the best care, you may encounter some issues. Here are a few common problems and how to solve them:

Mold Growth

If you notice mold in your terrarium, it may be due to excess moisture. Remove any affected plants and reduce watering.

Wilting Plants

Wilting can be a sign of underwatering or overwatering. Check the soil moisture and adjust your watering schedule accordingly.

Pests

If you see pests, remove them manually or use a gentle insecticidal soap.

Final Thoughts

Creating a terrarium is a fun and fulfilling project. With the right supplies and a little creativity, you can design a beautiful miniature garden that brings joy to your space. Remember to choose the right plants, provide proper care, and enjoy the process.

Building your own terrarium is not just about the end result; it is also about the journey. So gather your supplies, get your hands dirty, and let your creativity flourish. Happy gardening!