Terrarium 101: How to Build Your Own Miniature Garden

Terrariums are a fun and easy way to bring greenery into your home—no backyard required! These self-contained ecosystems are low-maintenance, customizable, and perfect for any space. Whether you're a seasoned plant lover or a beginner, building a terrarium is a rewarding and creative project.  

At Down to Earth, we have everything you need to craft the perfect, customized terrarium. Follow this step-by-step guide, and be sure to stop by for supplies or join one of our hands-on classes!  

Step 1: Choose Your Container

Terrariums can be open or closed, depending on the plants you want to use.  

Closed terrariums create a humid environment, ideal for ferns, mosses, and tropical plants.  

Open terrariums work best for succulents, cacti, and air plants, which prefer drier conditions.  

Step 2: Create Drainage Layers

Since terrariums don’t have drainage holes, layering is key to prevent root rot. Here’s the suggested order:  

1. Pebbles or gravel – Start with a 1-2 inch layer at the bottom for drainage.  

2. Activated charcoal – A thin layer of charcoal helps filter the air and prevent odors.  

3. Potting mix – Choose the right soil for your plants: cactus mix for succulents or moisture-retaining soil for tropical plants.  

Step 3: Pick Your Plants

The best part—choosing your plants! Consider size, growth habits, and light needs. Here are a few ideas:  

- For closed terrariums: Ferns, moss, baby’s tears, fittonia (nerve plant).  

- For open terrariums: Succulents, air plants, jade, echeveria, and cacti.  

Step 4: Plant & Decorate

Now for the fun part!  

1. Make small holes in the soil and carefully plant your selections.  

2. Arrange plants with taller ones in the back and smaller ones in the front.  

3. Add decorative elements like moss, small stones, driftwood, or figurines for personality.  

Step 5: Care & Maintenance

- Watering: Closed terrariums need occasional misting; open ones require light watering when soil is dry.  

- Light: Place in bright, indirect light. Avoid direct sun for closed terrariums to prevent overheating.  

- Pruning: Trim plants as needed to keep growth in check.  

Want to learn more? Let our expert team guide you through the process as you build your own stunning terrarium to take home!

📍 Visit us at Down to Earth to shop supplies or sign up for a class today!