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Choosing plants for a glass terrarium is a game of inches — the wrong pick outgrows its lid fast, and the wrong mix turns your tiny garden into a swamp. You need plants that stay small, tolerate high humidity near the glass, and handle the neglect that comes with a sealed environment. This guide breaks down nine of the top-rated small terrarium plant packs by value, variety, and real-world survival, so you can spot the difference between a healthy root system and a doomed one before you click.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
From sturdy succulents that thrive on neglect to fern assortments that love humidity, here are the best small terrarium plants worth buying in 2024 based on quality, variety, and owner satisfaction.
Our Picks at a Glance
How To Choose The Best Small Terrarium Plants
Before you buy, ask what kind of container you own. A sealed glass jar stays humid and suits ferns; an open dish dries out and prefers succulents or air plants. Matching plant type to your container’s humidity is the single biggest survival factor.
Match Moisture Needs to Your Container
Ferns like the ones in this list crave high humidity and moderate watering. Succulents and air plants want the opposite — little to no water and bright, indirect light. Put a succulent in a sealed jar and its roots will rot. Put a fern in an open dish and its fronds will crisp. Know your container before you pick a pack.
Check the Variety, Not Just the Count
A 12-pack sounds generous until you realize all twelve are the same species. Read the reviews — some packs deliver genuine assortment, others repeat. The Altman pack explicitly gives you 10 pairs, meaning 2 of each variety, which is real diversity for a single terrarium or a gift project.
Read the Height Spec
A plant that grows to 6 inches will hit the lid of a small cloche. Look at the expected plant height in the specs and compare it to your container. The Mini Terrarium Plants and the 2-inch pot ferns are built for small spaces, while the JM BAMBOO 6-pack can reach 4 to 6 inches and suits larger fairy gardens instead.
Quick Comparison
| Model | Best For | Plant Count | Height | Moisture | Amazon |
|---|---|---|---|---|---|
| Altman Plants 20-Pack★ Best Overall | Value & Variety | 20 | 4 inches | Little to none | Amazon |
| Hirt’s Mini FernsPremium Pick | High-Quality Ferns | 5 | — | — | Amazon |
| JM BAMBOO Terrarium PlantsTop Performer | Larger Fairy Gardens | 6 | 6 inches | Moderate | Amazon |
| Optiflora Mini Terrarium Plants | Humidity Terrariums | 2 | — | Moderate | Amazon |
| Air Plant Shop Ionantha 12-Pack | Soil-Free Displays | 12 | 3 inches | Moderate (soak) | Amazon |
| Hirt’s Terrarium Kit | Complete Setup | 3+ | — | — | Amazon |
| BubbleBlooms Fern Assortment | Fern Variety | 6 | 1 feet | Little to none | Amazon |
| Shop Succulents Air Plants | Bulk Air Plants | 20 | — | Moderate (mist) | Amazon |
| La Costa African Violets | Colorful Blooms | 3 | 2 inches | Moderate | Amazon |
In-Depth Reviews
1. Altman Plants, Live Succulent Plants (20 Pack)
Our pick — 4.5★ from 11,000+ verified ratings; the strongest balance of quality and price.
The 20-pack that turns a single terrarium project into a whole collection.
Value is the story here, and it’s the reason this tops the list. You get 20 fully-rooted succulents in 2-inch nursery pots, arranged as 10 pairs — so 2 of each variety, not 20 clones. That means a genuine mix of Echeveria, Graptosedum, Crassula, Portulacaria, Kalanchoe, Sedeveria, and Sedum to scatter across a desk, a wedding table, or several small terrariums at once.
The plants top out around 4 inches tall, which keeps them comfortable under a typical glass cloche. They need little to no watering thanks to their drought and heat resistance, so this is the pick for beginners who forget to check on their greenery. Buyers report they are “great variety, healthy well-rooted plants, low-maintenance, ideal for terrariums/gifts” — and the consensus echoes that: well worth the money, with many owners saying their plants have doubled in size.
The trade-off is that some plants arrive small, and the assortment isn’t guaranteed — the photo shows a dark maroon spiky plant that doesn’t always show up. A few leaves may drop in transit, but the roots stay healthy and recovery is quick. If you want maximum variety for the dollar, this is the strongest starting point on this list.
Why It Wins
- 20 plants with true variety — 2 of each of 10 types
- Practically no-maintenance watering needs
- Fully rooted in 2-inch pots, ready to plant
- Great for gifting or large events
What To Know
- Varieties differ from photos — no guaranteed selection
- Some plants arrive on the small side
- Minor soil spillage in transit
Grab it for: anyone who wants the most plants and variety for the money, especially beginners who want low-fuss care.
Look elsewhere if: you need a precise, curated species list — this pack is an assorted surprise, not a custom order.
2. Mini Ferns for Terrariums/Fairy Garden – 5 Different Plants
The fern pack that arrives looking like it just left the nursery bench.
Owner enthusiasm here is near-universal, and it centers on one thing: quality. Plants arrive with the soil still moist to the touch and leaves undamaged — buyers describe opening the box to find not even a single yellowed or browned leaf. For a live plant sold online, that level of packing care is the exception, not the rule.
You get 5 different fern varieties in 2-inch pots, chosen for terrariums and fairy gardens. The assortment shifts with the season, so every order is a slight surprise, but the consistent takeaway is healthy roots and sturdy growth. One owner uses them as a food source for pet birds; another happily dropped them straight into a planted terrarium. Even a rare thumbs-down noted the plants were “nicely packed” — the complaint was that they died within a month, which points to the fern’s neediness rather than the shipment.
Ferns are fussier than succulents — they want humidity and steady moisture. If your terrarium is open and dry, these will struggle. But for a sealed glass environment, this is the premium choice for owners who want quality over quantity.
Quality-first verdict: If you want 5 healthy, well-packed ferns and you can provide humidity, this is the superior pick over higher-count but riskier assortments.
Best suited to: owners of sealed terrariums who value plant health and packing care above raw count.
Think twice if: your space is dry — ferns are finicky without humidity.
3. Terrarium & Fairy Garden Plants – 6 Plants in 2.5″ Pots
Six distinct, healthy plants that arrive fuller and larger than expected.
If you want your fairy garden to look full from day one, this JM BAMBOO pack delivers six different plant varieties that arrive large and lush. Owners mention the plants were “bigger and fuller than I expected,” with healthy roots and no transit damage, so you skip the sparse, seedling stage entirely.
At approximately 4 to 6 inches tall, these suit medium-to-large terrariums and open fairy garden containers, not tiny cloches. The plants handle full sun or partial shade, giving you placement flexibility. One owner built a terrarium for a pet snake and admired the look — though the snake trampled them, a nice reminder that critter habitats need tougher ground cover.
The catch: because they’re bigger, they can outgrow a small container quickly, and a minority found them too large for their mini fairy garden. If your vessel is small, measure your height before buying. For a bigger build, this is a reliable, healthy six-pack.
Established-look winner: These read as full, mature plants immediately — perfect for a larger terrarium or a gift build.
Reach for this if: you have a medium-to-large terrarium and want instant fullness rather than tiny starters.
Look elsewhere if: your container is under a few inches tall — these will hit the lid.
4. BubbleBlooms Fern Variety Assortment, 6 Different Ferns
Six hand-selected ferns, each with a leaf shape you won’t see twice.
What wins people over here is the variety — every fern in the box is a different species with a distinct leaf texture, from delicate maidenhair to broader fronds. Buyers love the “good species variety with different leaf shapes” and the fast shipping; one Arizona owner got their plants four days early and revived them with a simple bottom-watering.
These are hand-selected from professional local growers and shipped in nursery containers, ready to move into a terrarium or a critter habitat. One buyer dropped theirs into an isopod tank and described the result as looking “like the beginning of a forest.”
The trade-off is hardiness. A few buyers lost half their ferns to the stress of shipping and transplanting, and maidenhair ferns are “notoriously hard to grow in dry climates,” according to reviewers. If you are new to ferns or live somewhere dry, plan for humidity or a humidifier. If you love varied leaf shapes, this is the most interesting fern pack in this list.
For fern lovers: The variety of leaf textures beats every other pack here — but treat it as a project, not a set-and-forget.
Get it if: you’re experienced with plants and want six visually distinct ferns for a humid terrarium.
skip it if: your home is dry and you want low-fuss greenery — ferns will demand your attention.
5. Air Plant Shop 12 Pack Assorted Ionantha Air Plants
The no-soil, no-fuss twelve-pack that survives years with a weekly soak.
Air plants skip soil entirely, needing only a weekly soak and bright indirect light. You just soak them in water for 20 minutes once a week, let them dry out, and give them bright but indirect light. At roughly 1-3 inches tall, they’re built for globes, open terrariums, and vertical displays where soil would be a mess.
This 12-pack from Air Plant Shop is the proof that the system works: customers note these plants “survived 2+ years,” with several blooming and one famously turning red-orange. The company backs it with a replacement guarantee if plants arrive damaged. Buyers most often praise the plants’ quality and appearance.
The recurring complaint is the assortment: many owners receive mostly the same Ionantha variety, with no real variety across the 12. The size also skews small for some. If you want 12 identical-looking air plants for a project, this is great. If you want 12 different species, temper your expectations.
Beginner’s best friend: No soil, no watering schedule drama, and a two-year track record — just don’t expect a rainbow of species.
Perfect for: open terrariums and globes where you want plants with zero soil mess and minimal care.
Know before buying: the “assorted” label overpromises; you may get mostly one variety.
6. Terrarium/Fairy Garden Kit with 3 Plants
Everything but the jar — a complete kit that builds itself in an afternoon.
If you’re starting from zero, this kit removes the guesswork. It bundles 3 live miniature plants (varieties change with the season) plus sheet moss, natural terrarium potting soil, carbonized charcoal, decorative mulch, and reindeer moss. Owners consistently describe it as fun and easy to assemble, with clear instructions and beautiful results.
The quantity is a pleasant surprise — reviewers point out the materials are generous enough for multiple terrariums, and one was “thrilled” with the complete kit, praising the packaging and the plants. Plant health draws mixed reviews—some arrive perfect and thrive, while a minority saw high mortality. Since the kit weighs 2.1 pounds, you’re getting real substance, not a flimsy starter.
The downside is control. You don’t get to pick your plant species, and without labels you’re guessing at care. If you want a curated, guided build with all the layers done for you, this is the easiest path in this list — just have your own glass container ready.
All-in-one starter: The only pick here that includes moss, charcoal, and soil so you can build the moment the box opens.
Best for: first-time terrarium builders who want a guided project with plenty of spare material.
Keep in mind: plant species are a seasonal surprise, so you can’t plan around specific varieties.
7. Mini Terrarium Plants (2 Plants) Fairy Garden Plants
A tiny two-pack that punches well above its size for humid terrariums.
Don’t let the small count fool you — these two plants are chosen specifically for the high-humidity environment of fairy gardens and terrariums. They arrive “in very good condition and very much alive,” as shoppers say, with healthy, good-size specimens that have a reputation for being easily divided. One owner split a single plant into two and ended up with three total for two separate terrariums.
Sized for small containers and demanding only moderate watering with full sun exposure, these are forgiving houseplants that also grow fine in larger pots. Owners highlight plant health and quality, plus the winter-blooming trait that adds color when others go dormant.
The main gripe is variety — with just two plants, you can’t expect a lush ecosystem. The variety is also unlabeled, so you may need to identify your fern and pan am yourself. For a budget-friendly way to populate a small sealed terrarium, this is a solid, healthy pick.
Small but mighty: A quality-over-quantity pick that gives you two vigorous plants perfect for a compact, humid glass jar.
Choose this if: you have a single small terrarium and want healthy, humidity-loving plants without buying a big pack.
Be aware: only two plants arrive, and they come unlabeled.
8. Shop Succulents Ionantha Tillandsia Air Plants, Pack of 20
Twenty soil-free plants with a quality guarantee — the bulk option for big displays.
For a large event, a long vertical garden, or a crafting project, this 20-pack of Ionantha air plants is the volume pick. They need no soil, just weekly misting or soaking, and bright indirect light. The brand backs it with a 100% health guarantee on delivery, which is meaningful for live plants bought online.
Buyers who got healthy shipments were impressed by the “nice size and very healthy” plants, even arriving in extreme heat. Quality and health lead the positives, though the brand admits some repeat species pad the count.
The risk is inconsistent condition — a small number of buyers report receiving plants that were dried up or had many dead leaves, and some find them very small. The assortment also leans repetitive. If you need twenty air plants and can accept some variability, the health guarantee covers you. If you want 20 genuinely different species, this won’t deliver.
Volume play: The largest air-plant count here with a delivery health guarantee — but condition varies by box.
Buy for: wedding favors, party displays, or DIY projects needing twenty small soil-free plants.
Watch for: repeat species and occasional dried-out arrivals — the guarantee is your safety net.
9. La Costa Plants 3-Pack Live Miniature African Violet Plants
The bloom-in-a-box: three flowering violets that add real color to a terrarium.
Most terrarium plants are green. These miniature African violets are not — they arrive with flowers and buds already on them, in shades of purple, pink, and blue, which is why the appearance is the most-praised aspect. Owners describe them as “beautiful, flowers and buds on each plant,” packed “nice and snug” for safe transit.
At just 2 inches tall, they stay truly miniature and fit small spaces like windowsills, desks, and compact terrariums. They prefer bright, indirect light, tolerate a range of humidity, and produce long-lasting blooms that can flower for several months with regular watering and fertilizing. The compact size and colorful foliage make them a standout gift plant.
Growth is mixed: some violets re-bloom for months, while a few wilt after arrival. Cold snaps can damage leaves, so protect them in transit and after delivery. If you want color and flowers over green foliage, this is the pick that delivers visual payoff immediately.
Instant color: The only pick in this list that arrives already flowering — a visual win for gifting or small displays.
Get it for: a windowsill, desk, or small terrarium where you want blooms, not just greenery.
Handle with care: leaves are fragile and cold-sensitive — keep them out of drafty spots.
Understanding the Specs
Plant Count vs. Real Variety
A 20-pack sounds better than a 2-pack, but only if the plants differ. Check the listing for phrases like “10 pairs” or “assorted varieties” and read reviews for complaints of duplicates. The Altman pack explicitly sells 2 of each variety; some air plant packs send the same species 12 or 20 times over. Count is not variety.
Expected Plant Height
This number tells you if the plant will outgrow your container. A 2-inch violet stays tiny for a small cloche, while a 6-inch fern needs a taller vessel. Measure your terrarium’s interior height before buying and leave room for growth. The JM BAMBOO pack runs 4 to 6 inches tall — too big for a tiny jar.
Moisture Needs
This is the #1 survival spec. “Little to no watering” means drought-tolerant (succulents, air plants) — best for open dishes. “Moderate watering” means humidity-loving (ferns, violets) — best for sealed terrariums. Mixing the two in one closed container kills the succulents via root rot. Match the spec to your container.
Pot Size and Root Health
Most mini plants ship in 2-inch nursery pots. A fully rooted plant in a 2-inch pot establishes faster than a cutting. Look for reviews mentioning “healthy roots” and “ready for transplanting” — that’s the signal the plant was grown, not just shipped. Roots matter more than leaf size for long-term survival.
FAQ
What is the difference between succulents and air plants for a terrarium?
Will a 6-inch plant fit in a small glass terrarium?
How long do live plants survive in the mail?
Can I mix ferns and succulents in the same terrarium?
How often should I water plants in a closed terrarium?
Are African violets good for small terrariums?
Why do my air plants keep dying?
Do terrarium plants really clean the air?
Which terrarium plant pack is best for a complete beginner?
Why did my ferns die within a few weeks?
Final Thoughts: The Verdict
For most buyers, the small terrarium plants winner is the Altman Plants 20-Pack because it gives you genuine variety, healthy rooted plants, and near-zero maintenance for the best value. If you want humidity-loving ferns with premium packing quality, grab the Hirt’s Mini Ferns. And for instant color that blooms from day one, the La Costa African Violets are the ones to reach for. Its 4.5-star rating across 11,000+ reviews makes it the crowd-proven safest pick for beginners and hobbyists.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of August 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Gardening Beyond earns from qualifying purchases. This does not affect which products we feature.