10 Best Plants for Terrariums: A Beginner’s Guide

10 Best Plants for Terrariums: A Beginner’s Guide

Terrariums are a trend that never loses its charm. They bring a touch of nature into any room, create a mini ecosystem, and are surprisingly easy to care for. Whether you’re a seasoned plant lover or a complete beginner, knowing the best plants for terrariums is essential to building a thriving, low‑maintenance indoor garden.

In this guide, we’ll walk you through the top ten plants that thrive in terrarium environments. By the end, you’ll have a clear idea of which plants match your style, lighting conditions, and maintenance preferences. Let’s dive in.

Choosing the Right Type of Terrarium

Before picking plants, decide whether you want a closed or open terrarium. Closed terrariums create a humid environment, ideal for tropical plants. Open terrariums allow air circulation, suiting succulents and cacti that need less moisture.

Closed Terrariums: Best for Moisture‑ Loving Plants

Closed terrariums retain humidity, making them perfect for mosses, ferns, and mossy moisture-loving species. The sealed environment also reduces the need for frequent watering.

Open Terrariums: Ideal for Drought‑Tolerant Species

Open terrariums are great for succulents, air plants, and small herbs that thrive with minimal moisture. They also provide better airflow, preventing mold growth.

Hybrid Models: Combining Both Worlds

Some terrariums feature a removable lid or a two‑section design, allowing you to switch between closed and open setups as your plants grow or as seasons change.

Top 10 Best Plants for Terrariums

1. Pygmy Succulent (Anubias nana)

These tiny, hardy succulents thrive in low light and need little water. They are perfect for the bottom layer of a closed terrarium.

2. Miniature Snake Plant (Sansevieria trifasciata ‘Laurentii’)

Snake plants are almost indestructible. They tolerate low light and infrequent watering, making them ideal for beginners.

3. Air Plant (Tillandsia usneoides)

Air plants need no soil and can be hung or placed on decorative rocks. They add a whimsical touch to any terrarium.

4. Moss (Sphagnum or Christmas Moss)

Moss is the foundation of a closed terrarium. It retains moisture and creates a lush, green backdrop.

5. Fern (Boston Fern or Button Fern)

Ferns love humidity and indirect light. Their delicate fronds add texture and depth.

6. Pilea Peperomioides (Chinese Money Plant)

This plant’s round leaves and airy growth make it a striking centerpiece in an open terrarium.

7. String of Pearls (Senecio rowleyanus)

Its bead-like leaves drape over the rim of the terrarium, creating a cascading effect.

8. Tiny Phragmites (Arundinaria nana)

These miniature reeds add vertical interest and mimic a miniature pond environment.

9. Christmas Fern (Polystichum acrostichoides)

Its fronds thrive in cool, damp conditions, perfect for a closed setup.

10. Giant Jade (Crassula ovata)

While not tiny, a very small Jade can add a touch of elegance to a larger terrarium.

Plant Care Tips for a Thriving Terrarium

1. Light Management

Position your terrarium near a bright window that receives indirect sunlight. Avoid direct rays that can scorch leaves.

2. Watering Schedule

Closed terrariums need minimal watering. Use a fine mist spray once a week. Open terrariums may need light watering every 10–14 days.

3. Humidity Control

For closed terrariums, the seal maintains humidity. If mold appears, remove excess moisture and increase airflow temporarily.

4. Soil and Substrate Selection

Use a well-draining potting mix for succulents. For ferns and moss, a peat‑based mix works best.

5. Pruning and Maintenance

Trim dead leaves promptly to keep the terrarium neat. This also encourages new growth.

Comparison Table: Closed vs. Open Terrarium Plants

Plant Best Terrarium Type Watering Frequency Light Needs
Moss Closed Weekly mist Low indirect
Succulents Open Every 10–14 days Bright indirect
Air Plant Both Weekly mist Bright indirect
Fern Closed Weekly mist Low to medium indirect
Pilea Peperomioides Open Twice a month Medium indirect

Pro Tips for Long‑Term Success

  1. Use a glass terrarium with a vented lid to prevent excess condensation.
  2. Place a small rock layer before soil to improve drainage.
  3. Rotate your terrarium every two weeks to ensure even light exposure.
  4. Introduce a cheap dehumidifier if mold becomes persistent.
  5. Consider adding a small LED grow light if natural light is insufficient.
  6. Use a moisture meter to avoid overwatering.
  7. Label each plant with a small tag for easy identification.
  8. Share your terrarium on social media to get feedback from fellow plant enthusiasts.

Frequently Asked Questions about best plants for terrariums

What are the easiest plants for a beginner terrarium?

Snake plant, moss, and air plant are beginner-friendly due to their low light and watering needs.

Can I have a terrarium in direct sunlight?

Direct sunlight can scorch plants. Opt for indirect or filtered light if the terrarium is near a sunny window.

How often should I mist a closed terrarium?

Mist once a week, or reduce to biweekly if condensation builds up quickly.

What is the best soil for a fern terrarium?

Use a peat‑based mix mixed with perlite for drainage.

Can I add herbs to a terrarium?

Small herbs like basil or thyme can thrive if placed in an open terrarium with good airflow.

Do I need a light source for my terrarium?

If natural light is limited, a low‑intensity LED grow light works well.

How can I prevent mold in my terrarium?

Ensure proper drainage, avoid overwatering, and provide occasional airflow.

Is it okay to mix succulents and ferns in one terrarium?

Yes, but keep them in separate sections or provide a humidity zone for ferns.

Can I use a plastic terrarium instead of glass?

Glass is preferred for transparency, but a clear plastic can work if you monitor moisture levels closely.

What should I do if my terrarium plants start to look yellow?

Check for overwatering, inadequate light, or nutrient deficiency and adjust accordingly.

Now that you know the best plants for terrariums and how to care for them, it’s time to start building your own miniature ecosystem. Whether you choose a closed, open, or hybrid terrarium, the plants listed above will ensure a vibrant, low‑maintenance display that brings nature’s serenity right into your home. Grab a glass jar, pick your favorites, and enjoy the process of creating a living piece of art.