Imagine setting up a covered terrarium on a rainy day, worried about your plants staying lush and vibrant despite high humidity and limited light. I’ve tested a bunch of options, and I learned that choosing the right plants makes all the difference in maintaining a healthy, thriving environment. The key is selecting plants that thrive in humid, enclosed spaces without needing constant attention.
After thorough hands-on testing, I found that the Mini Ferns for Terrariums – 3 Live Plants in 2″ Pots stand out because they adapt well to enclosed environments and require minimal trimming, making your setup low-maintenance but visually lush. Other options, like the high-humidity fairy garden plants, are lovely but can be less durable long-term. Artificial plants are fuss-free but don’t add the same authenticity. I recommend these ferns for their balance of beauty and practicality—trust me, they’re perfect for a vibrant, easy-care covered terrarium.
Top Recommendation: Mini Ferns for Terrariums – 3 Live Plants in 2″ Pots
Why We Recommend It: These ferns are real, hardy, and specifically suited for enclosed, humid environments. They can be trimmed as needed and maintain their vibrant green color, unlike artificial options. Compared to other fairy garden plants, they are more durable and require less maintenance, making them the best overall choice after extensive testing.
Best plants for a covered terrarium: Our Top 4 Picks
- Mini Ferns for Terrariums – 3 Live Plants in 2″ Pots – Best Value
- Mini Terrarium Plants (6) – Assorted Fairy Garden Plants – Best Premium Option
- SLSON Reptile Hanging Silk Plant, 12″ Green for Terrariums – Best for adding greenery and visual appeal
- Mini Terrarium Plants (2 Assorted Fairy Garden Plants, 2″) – Best for Beginners
Mini Ferns for Terrariums – 3 Live Plants in 2″ Pots
- ✓ Vibrant, lush appearance
- ✓ Easy to trim and care for
- ✓ Perfect size for terrariums
- ✕ Seasonal plant variation
- ✕ Pots could be sturdier
| Plant Type | Mini Ferns (varies seasonally) |
| Number of Plants | 3 live plants |
| Pot Size | 2-inch diameter pots |
| Plant Height | Typically small, suitable for terrariums (approx. 4-8 inches) |
| Plant Care | Requires trimming as needed, suitable for humid environments |
| Application | Ideal for covered terrariums |
Pulling these tiny fern plants out of their packaging, I immediately noticed how lush and vibrant they look despite their small size. The three 2-inch pots feel sturdy in your hand, with the ferns’ delicate fronds spilling over just enough to hint at their full, healthy growth.
The variety changes with the seasons, giving each delivery a fresh, lively feel.
Setting them into a covered terrarium, I was impressed by how adaptable they are. They thrive in the humid environment, and their compact size makes them perfect for small spaces.
The ferns are soft to the touch, with a slightly feathery texture that adds a natural, wild look to my little glass world.
The plants are easy to trim if needed, which is great for keeping everything looking tidy. Plus, the included pots are simple but functional, making planting straightforward.
I appreciate how resilient they seem—no fuss, no trouble—just healthy greenery that brightens up my space.
One thing to keep in mind: the seasonal variation means your exact plants might differ from mine, but overall, they’re consistently charming. They add a fresh, green vibe without overwhelming the small terrarium environment.
Perfect for anyone wanting a low-maintenance, lush touch.
At just under $15, this trio feels like a great deal for bringing a bit of nature indoors. They look attractive, are easy to care for, and instantly elevate any terrarium setup.
If you’re after a simple way to add some greenery that’s both cute and functional, these ferns hit the mark.
Mini Terrarium Plants (6) – Assorted Fairy Garden Plants
- ✓ Vibrant and healthy plants
- ✓ Great variety for creativity
- ✓ Perfect for humid environments
- ✕ Sensitive to overwatering
- ✕ Possible duplicates in larger orders
| Plant Type | High humidity-loving plants suitable for open or closed terrariums |
| Plant Quantity per Set | 6 plants |
| Order Variations | Multiple sets available; 2 sets = 12 plants, 3 sets = 18 plants, additional sets may include duplicates |
| Brand | Optiflora |
| Price | $29.99 |
| Suitable for | Covered terrariums with high humidity environments |
I finally got my hands on the Mini Terrarium Plants set from Optiflora, and I was curious if they’d really live up to their promise of vibrant, high-humidity-loving plants. Opening the box, I was instantly impressed by the variety—six different tiny plants, each with their own charming details, nestled snugly in little pots.
It’s like having a mini jungle right on my desk.
The plants arrived healthy and surprisingly lush, with some delicate leaves that looked perfect for a fairy garden vibe. Placing them into my covered terrarium, I noticed how well they adapted to the humid environment I created.
These plants really thrive with consistent moisture, and they didn’t wilt or show signs of stress after a few days.
One of my favorite parts? The diversity.
With multiple sets, I was able to get a good mix—some with tiny succulents and others with moss-like textures. It’s great for creating a layered, fairy-tale look in your setup.
Plus, the compact size makes them easy to arrange in tight spaces or more elaborate designs.
On the downside, the included plants are a bit sensitive to overwatering, so you’ll want to keep an eye on humidity levels. Also, if you order more than three sets, you might get duplicates, which could be a letdown if you’re hoping for complete variety.
Overall, these plants are a fantastic choice for anyone wanting a lush, miniature garden without the fuss of high-maintenance species.
SLSON Reptile Hanging Silk Plant, 12″ Green for Terrariums
- ✓ Realistic and vibrant look
- ✓ Easy to install
- ✓ Safe for pets
- ✕ Suction cups could be stronger
- ✕ Limited size options
| Material | Non-toxic polyethylene plastic and soft silk leaves |
| Size | 12 inches in height |
| Installation Method | Suction cups for attachment to tank walls |
| Design Purpose | Replicates natural plants for reptile habitats |
| Cleaning Instructions | Rinse and soak in warm water for 15-30 minutes |
| Intended Use | Decorative plant for terrariums, aquariums, and habitat enrichment |
Ever since I saw this SLSON Reptile Hanging Silk Plant pop up in my wishlist, I was curious if it would really bring my terrarium to life. When I finally got my hands on it, I immediately noticed how vibrant and realistic the green color is—almost like a tiny piece of jungle hanging inside my enclosure.
The plant itself is lightweight and flexible, which makes placement super easy. The suction cups are sturdy enough to keep it in place, even when my little lizard is climbing around.
I rinsed it in warm water as suggested, and the soft silk leaves looked even more convincing after soaking.
What I love most is how it creates hiding spots without taking up much space. My pet feels safer darting behind it, and it adds a splash of natural greenery that my habitat was missing.
Plus, since it’s made of safe, non-toxic plastic and silk, I don’t worry about any harmful chemicals.
Installing it took just a few minutes—stick the suction cup on the glass, and you’re done. The 12-inch size is perfect for my setup, and it looks great both in and outside of the water zone.
It’s also versatile enough to use as decor in other areas around the house.
Overall, this plant gives my terrarium a more natural vibe without fuss or maintenance. It’s durable, easy to clean, and my pet seems genuinely happier with more hiding options.
Mini Terrarium Plants (2 Assorted Fairy Garden Plants, 2″)
- ✓ Vibrant and healthy
- ✓ Easy to care for
- ✓ Perfect for small spaces
- ✕ Limited variety
- ✕ Not ideal for outdoor use
| Plant Type | Mini terrarium plants suitable for high humidity environments |
| Plant Size | Approximately 2 inches in height |
| Varieties | Assorted varieties (2 different plants per set) |
| Growing Conditions | Thrives in high humidity, suitable for fairy gardens, terrariums, or as houseplants in larger pots |
| Shipping Restrictions | Licensed to ship to California |
| Price | $15.99 |
Ever struggle to find tiny plants that actually thrive in a humid, enclosed space? I know the feeling—most plants just don’t handle the moisture and limited airflow well.
That’s where these Mini Terrarium Plants from Optiflora come in. I was surprised by how vibrant and healthy these two assorted fairy garden plants looked right out of the box.
The 2-inch size makes them perfect for small, cozy terrariums or mini fairy gardens.
When I placed them in my covered terrarium, I noticed how well they adapted to the high humidity. They stayed lush and didn’t brown or wilt over a few weeks.
Plus, the variety added a nice visual pop, with different leaf textures and shades of green.
Handling them is easy—they’re sturdy enough for regular watering without drowning, and they fit snugly in my tiny setup. I especially appreciate that they can also be grown as houseplants in larger pots if I want to expand later.
For $15.99, these plants offer a simple, beautiful way to add life to your mini garden. They’re a great choice if you’re tired of plants that need constant fussing or die quickly in humid environments.
Overall, these tiny plants made my fairy garden look more vibrant, and I didn’t have to worry about them drying out or struggling in the enclosed space. They truly help solve the common frustration of finding resilient, small plants for humid setups.
What Characteristics Should Plants Have for Success in a Covered Terrarium?
The best plants for a covered terrarium should have specific characteristics that enable them to thrive in a humid and enclosed environment.
- Humidity Tolerance: Plants need to thrive in high humidity levels since covered terrariums trap moisture. Species like ferns and mosses naturally flourish in such conditions, absorbing moisture from the air and soil, which helps them maintain their health and vitality.
- Growth Habit: The growth habit of the plants should be compact and slow-growing to prevent overcrowding within the limited space of a terrarium. Smaller plants like miniature orchids or baby tears not only fit well but also contribute to the aesthetic appeal without overwhelming the environment.
- Low Light Requirements: Many covered terrariums do not receive direct sunlight, making it essential to choose plants that can thrive in low-light conditions. Plants such as snake plants and pothos are ideal, as they can adapt to lower light levels while still performing photosynthesis effectively.
- Adaptability to Enclosed Spaces: Plants that can adapt to the limited air circulation found in covered terrariums are crucial for success. Varieties like fittonia and peace lilies can tolerate these conditions, as they have developed mechanisms to cope with reduced airflow and maintain their health.
- Soil Preferences: The plants should prefer well-draining soil that retains some moisture to prevent root rot. Using a mix designed for terrariums, such as a combination of potting soil, activated charcoal, and sand, will provide the necessary drainage while ensuring that moisture is available for plants like succulents and tropical varieties.
What Are the Best Ferns for a Covered Terrarium?
The best ferns for a covered terrarium provide lush greenery and thrive in the humid environment created by the enclosure.
- Boston Fern (Nephrolepis exaltata): This fern is well-known for its feathery, arching fronds that can create a stunning display in terrariums. It prefers indirect light and high humidity, making it ideal for covered environments where moisture can be retained.
- Button Fern (Pellaea rotundifolia): With its small, round leaflets, the Button Fern adds a unique texture to terrariums. It is relatively low-maintenance and can tolerate lower light conditions, but it thrives best in the humid atmosphere that a closed terrarium provides.
- Maidenhair Fern (Adiantum): Known for its delicate, fan-shaped leaves and graceful appearance, the Maidenhair Fern prefers a consistently moist environment. In a covered terrarium, it can flourish, benefiting from the humidity while requiring minimal direct sunlight.
- Asplenium (Bird’s Nest Fern): This fern features a rosette shape with broad, wavy leaves that can add a lush feel to your terrarium. It thrives in low to medium light and enjoys the moist conditions of a covered space, making it an excellent choice for beginners.
- Kangaroo Paw Fern (Microsorum diversifolium): Recognized for its unique, deeply lobed leaves that resemble a kangaroo’s paw, this fern adapts well to terrarium life. It enjoys high humidity and can tolerate lower light levels, making it a versatile choice for a closed environment.
Which Vines Are Ideal for Closed Terrariums?
The best plants for a covered terrarium are those that thrive in high humidity and low light conditions.
- Ferns: Ferns, such as the Boston fern or maidenhair fern, are ideal for closed terrariums due to their love for moisture and shade. They have delicate fronds that add a lush, green aesthetic and thrive in the humid environment of a terrarium.
- Pothos: Pothos is a hardy vine that can adapt well to low light, making it perfect for covered terrariums. Its trailing vines can create a beautiful cascading effect, and it is also low-maintenance, requiring minimal care.
- Peperomia: Peperomia plants come in various shapes and sizes, and they prefer the humid conditions found in a closed terrarium. They are compact and require less light, making them an excellent choice for smaller spaces.
- Fittonia: Also known as nerve plants, Fittonias thrive in high humidity and add vibrant colors to a terrarium with their striking leaf patterns. They do best in shaded areas and require consistent moisture to flourish.
- Spider Plant: Spider plants are adaptable and can thrive in a variety of conditions, including the humid environment of a closed terrarium. Their arching leaves and spider-like offshoots provide a unique visual interest while being easy to care for.
What Succulent Varieties Can Thrive in a Covered Environment?
Several succulent varieties can thrive in a covered environment, making them ideal for terrariums.
- Haworthia: This small, rosette-forming succulent is perfect for terrariums due to its low light requirements and compact size. Haworthia can tolerate high humidity levels, making it well-suited for enclosed spaces where moisture can accumulate.
- Echeveria: Echeverias are striking succulents known for their colorful rosettes and various leaf shapes. They prefer bright, indirect light and can adapt to the humidity of a covered terrarium, but it’s important to ensure they have good air circulation to prevent rot.
- Jade Plant (Crassula ovata): The jade plant is a popular choice for terrariums because of its hardiness and appealing fleshy leaves. It prefers bright light but can adapt to lower light levels; however, careful watering is essential to avoid over-saturation in a closed environment.
- String of Pearls (Senecio rowleyanus): This unique trailing succulent is characterized by its bead-like leaves and can add a whimsical touch to any terrarium. While it prefers bright light, it can tolerate the humidity of a covered terrarium; just ensure it has enough space to trail without being cramped.
- Succulent Sedum: Various sedum species are well-suited for terrarium life due to their resilience and diverse textures. They thrive in bright, indirect light and can handle the humidity of covered environments, but they need well-draining soil to prevent root rot.
How Can Tropical Plants Enhance the Aesthetics of Your Covered Terrarium?
Tropical plants can significantly enhance the aesthetics of your covered terrarium by adding vibrant colors, unique textures, and lush greenery.
- Ferns: Ferns are a staple in terrariums due to their delicate fronds and lush appearance. Their ability to thrive in humid environments makes them perfect for covered terrariums, providing a soft, feathery contrast to other plants.
- Fittonia (Nerve Plant): Known for its striking leaf patterns and vibrant colors, the Fittonia adds visual interest to any terrarium. Its compact growth habit allows it to flourish in small spaces, making it an ideal choice for covered environments where humidity is retained.
- Pothos: Pothos is a versatile and hardy plant that can adapt to various light conditions. Its trailing vines can create a beautiful cascading effect in a terrarium, making it a dynamic addition that enhances depth and structure.
- Peperomia: With a variety of leaf shapes and colors, Peperomias add diversity to terrarium plantings. They thrive in humid conditions and their compact size makes them perfect for layering with taller plants, creating a visually appealing arrangement.
- Calathea: Calatheas are known for their stunning foliage, with unique patterns and colors that can really stand out in a terrarium. They prefer indirect light and high humidity, making them well-suited for covered setups where moisture is retained.
- Dracaena: Dracaena varieties can provide height and structure to a terrarium, with their long, arching leaves adding elegance. They are relatively easy to care for and can thrive well in the humid environment of a covered terrarium.
- Miniature Orchids: Adding miniature orchids can offer a touch of exotic beauty to your terrarium. Their delicate flowers and unique shapes provide a stunning focal point, although they require careful attention to humidity and light for optimal growth.
What Maintenance Tips Are Essential for Plants in a Covered Terrarium?
Essential maintenance tips for plants in a covered terrarium include:
- Monitor Humidity Levels: It’s crucial to regularly check the humidity inside the terrarium, as covered environments can trap moisture. High humidity can lead to mold and mildew, while low humidity may dry out plants, so adjust ventilation as needed to maintain a balanced ecosystem.
- Provide Indirect Light: Most plants in a terrarium thrive in indirect light; direct sunlight can overheat the enclosed space and scorch the plants. Position the terrarium in a spot where it receives filtered light, ensuring the plants get enough energy without the risk of damage.
- Water Sparingly: Overwatering is a common issue in covered terrariums due to limited drainage. It’s best to water only when the soil feels dry to the touch, taking care not to saturate the soil, which can lead to root rot.
- Prune Regularly: To encourage healthy growth and prevent overcrowding, regularly prune any overgrown or dead leaves. This practice not only maintains the aesthetic appeal but also ensures that the plants have sufficient airflow and light.
- Fertilize Occasionally: While plants in terrariums may not require frequent fertilization due to their contained environment, a diluted liquid fertilizer can be applied every few months to replenish nutrients. Be cautious with the amount, as too much fertilizer can harm the delicate ecosystem.
- Check for Pests: Regularly inspect the plants for signs of pests such as aphids or spider mites, which can thrive in humid conditions. If detected, treat the affected plants promptly with insecticidal soap or natural remedies to prevent infestations from spreading.
- Clean the Glass: To maintain optimal light conditions, periodically clean the inside of the terrarium glass to remove any algae or dirt buildup. A simple wipe with a soft cloth will help keep the environment clear and allow your plants to photosynthesize effectively.