Terrarium Plants: 20 Types of Miniature Plants that Grow Well in (Open and Closed ) Terrariums

Why are terrariums all the rage in home gardening?

Maybe because you can play with the colors of the grass, of the plants and even of the soil and gravel? Maybe because you can grow your plants in decorative glass containers?

Maybe because they are miniature gardens, and they can look very exotic? Maybe because you can express your artistic qualities?

Whichever the reason, the fact is that they are, and that they are also easy to make! But not all plants are suitable for your terrarium…

So, what plants grow well in a terrarium?

In terrariums, you need to use slow growing miniature plants, visually striking and original houseplants and also plants that will adapt to the shape and opening of your terrarium. Many succulents, insectivorous plants and small houseplants are suitable.

If you are wondering which plants you can “mix and match” in your open or closed terrariums, you will need a visual description (with a picture) and also tips and facts, as you will need to match plants with similar needs.

So, just read on and find one which of the terrarium plants in this article will turn that empty glass vessel into a wonderful small garden!

20 Stunning Terrarium Plants

Types of Terrariums

Types of Terrariums

First of all, you need to know that there are different types of terrariums. Of course, the shape, depth and color make a difference, but in practical terms what matters most is the opening.

  • Open terrariums have a large opening, or “mouth” if you want, and they allow for good ventilation. They are suitable for plants that like dry air and suffer in humid places, like succulents, for example.
  • Closed terrariums have a small opening, and they are suitable for plants that like humidity, like ferns and insectivorous plants, or plants that come from rainforests.

Also the depth of the terrarium is important though; shallow terrariums are not suitable for plants that do not like their “feet” wet, like succulents. Stagnant water can cause root rot and spell the death of your little green friends.

So, choose your container carefully, or, if you already have one you want to recycle, choose your plants carefully!

How to Make a Terrarium

Making a terrarium is quite simple. You will need to start from the bottom and build up from there…

  • At the bottom, always put gravel or small pebbles. Terrariums have no drainage holes, so, excess water will need a place to go where the roots do not risk rotting. Put about ½ inch of pebbles or gravel for small terrariums, though for succulents use at least 1 inch. Do increase this layer with medium sized and large sized terrariums. Don’t forget that they will be in sight; so, choose them of a nice color!
  • Then, put a thin layer of dry moss. This will hold the roots above the pebbles and excess water level.
  • Sprinkle some organic activated charcoal. This will stop fungal growth, which can be a serious problem with terrariums. A very thin layer will do.
  • Add your potting soil, compost or growing medium. Here too you can play with the colors of your soil or medium.
  • Plant your terrarium plants, always starting with the bigger ones. Putting in place big plants when small ones are already in place is messy and you risk damaging them. Move them around till you are happy with the composition, then place them in and press the soil firmly but carefully around the base of the plant. Trailing plants should go near the mouth of your terrarium.
  • Once the plants are in place, you can add the final layer, which can be moss or colored gravel. If you want, you can also add little features like statuettes, gates, or whatever fits with the theme of your terrariums.

That’s it!

Last but not least, get your children to join in, as making a terrarium is a fun and educational activity!

20 Stunning To Grow In Your Terrarium

I’ve divided the species up by closed and open lid terrarium plants. To help you decide on which plant is the best fit, take a look at each one’s appearance, water intake and sunlight needs.

Here are 20 of the most beautiful pants that grow well in terrariums

Closed (Humid) Terrarium Plants With Names And Pictures

Strawberry Begonia

If your terrarium has a small opening, you can only grow plants that like lots of humidity, which will accumulate in it, as it will not have good ventilation. Here are some low care plants to consider when planting your own closed terrarium.

1. Nerve Plant (Fittonia Spp.)

Nerve Plant

The leaves of nerve plant have an amazingly decorative pattern of bright colors; the veins, in fact, can be white, pink, purple, red or yellow, while the rest of the leaf tends to be green, but it can also be lime green, blue or dark blue green!

The combinations are almost infinite, and each has its own mood, but they are all eye catching.

The elliptical leaves of these small houseplants come in opposite pairs on short stems and they will certainly add color and liveliness to your terrarium.

Nerve plant will also produce thick spikes with beautiful, if small, white flowers to add to the visual effect of your garden in a glass bowl.

  • Light exposure: it likes filtered light and no direct sunlight.
  • Maximum size: 3 to 6 inches tall (7.5 to 15 cm) and 12 to 18 inches in spread (30 to 40 cm).
  • Soil requirements: good quality, loose and well drained potting soil; it prefers an acidic pH but it will do well in neutral pH and it can stand alkaline soil.
  • Watering: it needs constant but not excessive watering, if it goes dry, the plant wilts and collapses, too much water instead will make the leaves go yellow.

2. Baby’s Tears (Soleirolia Soleirolii)

Baby’s Tears (1)

How can you do without a trailing plant with rich foliage draping over your terrarium?

It is a visual effect that links the small “garden in a bottle” to the outside space and which adds interesting dynamics to the ensemble, even highlighting the beauty of the vessel.

A plant that does this perfectly is baby’s tears, whose branches have many tiny light emerald green round leaves that your terrarium really can ‘t do without!

  • Light exposure: bright but indirect light.
  • Maximum size: 3 to 6 inches tall (7.5 to 15 cm) m but it spreads wide and fast.
  • Soil requirements: good, rich and well drained potting soil; it prefers a slightly acidic pH, between 5.0 and 6.5.
  • Watering: it needs regular watering, and you should never allow the soil to go completely dry.

3. False Shamrock (Oxalis Triangularis)

False Shamrock

The three, triangular, dark and deep magenta leaves on each thin stem of false shamrock will look like parasols, or weird magic mushrooms in the small context of your terrarium.

At close range, these beautiful leaves have thin veins that make them look like butterfly wings…

So, for a fairy tale touch, or just to add the depth and passion that magenta and purple bring to any composition, this is a wonderful plant for your terrarium.

And you won’t regret it when delicate, light pink purple flowers will pop their heads above the foliage.

  • Light exposure: indirect but bright light.
  • Maximum size: it can grow to a maximum of 20 inches tall (50 cm), but in small containers, the size will be much reduced.
  • Soil requirements: well drained potting soil will be good, loam and sand (sandy loam) is also good; it likes alkaline soil, ideally with pH between 7.6 and 7.8, but it will do well in neutral soil and it can even stand acidic soil.
  • Watering: keep the soil humid but not moist and avoid stagnant water as well as dry soil.

4. Venus Flytrap (Dionaea Muscipula)

Venus Flytrap (1)

Close terrariums are a good environment for insectivorous plants, and they are sure to wow your guests!

And what better choice than the classical Venus flytrap, with its exotic look, weird appearance and strange behavior?

Famous for closing its modified leaves when insects happen on them, like red mouths.

It is also very decorative, thanks to the red color of the trap leaves when open and the “teeth” or cilia around them. And they do blossom too, with beautiful white flowers with green veins in them!

  • Light exposure: plenty of bright but indirect sunlight at least 6-7 hours a day. In a pot, it can stand direct light, but remember that the terrarium glass can work like a lens, so, no direct light.
  • Maximum size: 2 to 3 inches tall (5 to 7.5 cm), 6 inches when in bloom (15 cm) and 8 inches in spread (20 cm).
  • Soil requirements: 2 parts sphagnum moss and one part perlite or sand; it does not like rich soil; it likes very acidic pH, between 3.0 and 5.0.
  • Watering: keep it constantly watered, the soil needs to be humid at all time, but not waterlogged. Use rainwater and not tap water.

5. Frosty Fern Spike Moss (Selaginella Kraussiana)

Frosty Fern Spike Moss (1)

If you are considering a “temperate forest” look for your terrarium, with lots of frond like, rich and lush green branches, then frosty fern spike moss has amazingly rich, green foliage that looks a bit like moss, or a dense conifer branch, reminiscent of that of a cypress.

With a round habit and many green branches covered in loads of thin and long tiny leaflets, this plant can bring rich texture and a sea of green to your composition.

  • Light exposure: it can grow in shade or partial shade, no direct sunlight.
  • Maximum size: 1 to 2 feet tall (30 to 60 cm) and in spread, so, good for large terrariums.
  • Soil requirements: rich, well drained potting soil, with neutral or acidic pH.
  • Watering: keep the soil constantly humid but not waterlogged.

6. Indian Holly Fern (Arachnoides Simplicior)

Indian Holly Fern

Long stems with fronds of many on the sides, each looking like the feather of a bird, with many leaflets making up the overall shape make Indian holly fern an astounding houseplant that would look great in a terrarium, and in fact it’s hard to work out why this green beauty is not still little known.

The leaves are dark green with a lighter color towards the stems, which highlights the dynamic shape of this plant’s foliage, while the overall shape and habit is that of a fern, which makes it ideal for “forest and shade inspired” composition.

  • Light exposure: full shade or part shade.
  • Maximum size: 1 to 2 feet tall (30 to 60 cm) and 1.5 to 3 feet in spread (45 to 90 cm).
  • Soil requirements: it tolerates most types of soil, loam, clay, chalk and sand, but it needs to be well drained and with neutral pH (6.5 to 7.5).
  • Watering: keep moist at all time but not waterlogged; never allow the soil to go fully dry.

7. Australian Pitcher Plant (Cephalotus Follicularis)

Australian Pitcher Plant

A child charmer like Australian pitcher plant would make your terrarium look exotic, unique and even otherworldly!

With its large, waxy, sculptural pitchers or the most amazing color combinations, it looks more like an ancient vase or urn than a plant, in fact.

They can be green, purple, red and even violet, often with stripes and decorative patterns, and with a lid (operculum) that turns this insectivorous plant into a strange talking character from a fantasy book or movie.

  • Light exposure: partial shade will be fun, or bright and indirect light.
  • Maximum size: up to 3 inches tall (7.5 cm), depending in the variety, but suitable for small terrariums.
  • Soil requirements: a mix of 50% peat moss and 50% perlite or sand, with pH under 7.0.
  • Watering: keep moist but not waterlogged; do not allow the soil to dry up and only use rainwater.

8. Spiderwort (Tradescantia Virginiana)

Spiderwort

A popular flowering plant for terrariums, spiderwort is a perennial with long and thin blade like leaves that grow upright then arch downwards, of a bright green color that fills with brightly intense violet blue flowers with three petals from late spring to midsummer.

Relative of the succulent Tradescantia pallida, spiderwort is actually an herbaceous houseplant that likes humidity, which makes it perfect to bring beautiful blooms to your closed terrarium.

  • Light exposure:
  • Maximum size: 1 to 3 feet tall (30 to 90 cm) and 2 to 3 feet in spread (60 to 90 cm), so ideal for large terrariums (people like to grow them in wine demijohns…
  • Soil requirements: good well drained potting soil, or chalk, loam or sandy soil preferably with slightly acidic pH (5.0 to 6.0) though neutral is fine and it will stand lightly alkaline soil.
  • Watering: keep moist but not wet and never dry.

9. Strawberry Begonia (Saxifraga Stolonifera)

9.	Strawberry Begonia (Saxifraga stolonifera)

Fill your terrarium with beautiful, lobed, dark hunter green leaves with light green veins that grow horizontal to the ground like tiny shades for fairies, but don’t forget to leave strawberry begonia a lot of headroom, as the flower bearing stems will grow slender and tall, and well spaced white and purple pink flowers will blossom like floral ballerinas or butterflies dancing in the air.

While it loves humid places, it will also adapt to a dry (open) terrarium.

  • Light exposure: no direct sunlight, partial shade or even full shade.
  • Maximum size: the leaves never top 8 inches (10 cm), but the flower stems will grow up to 2 feet (60 cm) and the spread is between 1 and 2 feet (30 to 60 cm).
  • Soil requirements: well drained and loose potting soil, or loam, chalk or sandy soil, with neutral pH (6.6 to 7.5).
  • Watering: water regularly, allowing the top inch of soil to dry in the growing season; reduce watering in winter.

10. Tropical Pitcher Plant (Nepenthes Spp.)

Tropical Pitcher Plant (1)

For a wow factor, tropical pitcher plant, on top of glossy, long green and rounded leaves, tropical pitcher plant also adds hanging pitchers that can be of the most amazing colors: red, purple, orange, green and in many combinations.

The pitchers can be of different shapes and sizes according to the species, but if you are after a small plant, Nepenthes ventricosa grows to a maximum of 8 inches (20 cm) tall, and it offers pitchers with a large light green bowl at the bottom and then a neck that turns bright purple red towards the mouth (peristome).

A sure hit with children and a great topic of conversation with guests, tropical pitcher plants can turn your terrarium into an exotic botanical garden with their originality and showy appearance.

  • Light exposure: bright but indirect light.
  • Maximum size: the size varies a lot, depending on the species, some can grow to up to 50 feet tall (15 meters), but dwarf varieties like Nepenthes ventricosa (8 inches, or 20 cm), can fit even into a small terrarium.
  • Soil requirements: mix peat, sand, orchid bark, perlite and sphagnum peat moss in equal parts for a perfect growing medium; alternatively, use orchid mix or sphagnum moss with sand or perlite. It likes acidic soil, preferably between 4.2 and 5.6.
  • Watering: keep moist but not waterlogged at all time; you will water it on average 2 or 3 times a week; do not allow the soil to dry up and only use rainwater.

Open (Dry) Terrarium Plants

OPEN (DRY) TERRARIUM PLANTS

The range of plants you can grow in an open (or dry) terrarium is bigger, because you don’t have the problem of high humidity.

The most popular are succulents, but there are other houseplants you can use as well and here are some of the most beautiful for you to choose from.

11. Old Hens And Chickens (Echeveria Secunda)

Old Hens and Chickens

For a smart, harmonic, sculptural look, old hens and chickens is the perfect houseplant. In fact, it has marble looking blue petals marked by a small, but decorative pointed tip, precisely arranged in a rosette that looks like a geometrical masterpiece, like the rose window of a gothic cathedral or an abstract sculpture.

This small size Echeveria is ideal for formal, artistic and even futuristic compositions, also thanks to the distinctively soothing and gem like color of its leaves.

  • Light exposure: lots of bright but indirect light or even partial shade.
  • Maximum size: 6 inches in height and spread (15 cm), making it a perfect hemisphere.
  • Soil requirements: sandy loam, or a light and well drained cactus compost; it will manage alkaline soil, but acidic to neutral is best, ideally between 5.6 and 6.0.
  • Watering: drought resistant, only water it lightly when the soil has dried up completely.

12. Red Pagoda (Crassula Capitella)

Red Pagoda

You can create an oriental looking garden in your terrarium with red pagoda, a small succulent that has, along upright stems, geometrically arranged triangular leaves that look like the roof of a Japanese pagoda!

Light green at the base, these leaves turn bright crimson at the tips, giving you a striking but very architectural contrast.

  • Light exposure: lots of bright and direct light, part shade is also fine though, but the coloring may be less striking.
  • Maximum size: 6 inches tall (15 cm) and with a spread that can reach 1 or 2 feet (30 to 60 cm).
  • Soil requirements: it likes light and well drained soil, rich in sand or perlite; loamy sand is perfect. It will grow in alkaline, neutral or acidic pH.
  • Watering: always wait for the soil to have dried has completely before watering; only give it little water each time.

13. Polka Dot Plant (Hypoestes Phyllostachya)

Polka Dot Plant

If you want an impressive display of colors all year round in your terrarium, polka dot plant offers you leaves of a multitude of colors.

In fact, the leaves have a base color and then lots of dots of a different shade, sometimes even very bright.

Any combination of green, pink, magenta, white and red is possible on the beautiful lanceolate leaves of this tiny evergreen shrub.

  • Light exposure:
  • Maximum size: 4 to 20 inches tall (10 to 50 cm), and 16 to 20 inches in spread (40 to 50 cm).
  • Soil requirements: well drained loam, or good loose potting soil; it is not fussy about pH, and it can grow in slightly alkaline or acidic soil, but it prefers it between 5.6 and 6.0.
  • Watering: keep the soil moist during the growing season but reduce watering in winter.

14. Zebra Cactus (Haworthia Attenuata)

Zebra Cactus

Imagine a tuft of dark green, long, succulent upright and dark green leaves with white stripes, which bend slightly like the flames of a surreal fire in your terrarium…

Zebra cactus is an unusual looking plant with few demands and a striking look to offer you.

  • Light exposure: it prefers a part shade position, though it can tolerate full Sun; in a terrarium indoors though, direct light should be avoided.
  • Maximum size: it usually stays within 5 inches tall (12 cm), but it can grow to 12 inches (30 cm); the spread too varies between 6 and 26 inches (15 to 66 cm).
  • Soil requirements: very well drained cactus potting soil, with pH between 6.6 and 7.5 preferably.
  • Watering: only water lightly when the soil has gone completely dry. It is drought resistant.

15. Starfish Plant (Cryptanthus Bivittatus)

15.	Starfish Plant (Cryptanthus bivittatus)

For a surreal marine theme in your terrarium, starfish plant cannot be forgotten. It forms rosettes of long, pointed and wavy fleshy and glossy leaves that look like starfish from a cartoon, as they are striped with purple pink on the outside, then light cream to grey green, and at the center it has a dark green stripe as well.

It has a very lively and playful character, and is small enough to fit into a salad bowl.

  • Light exposure: partial shade, dappled shade and full shade.
  • Maximum size: 6 inches in height (15 cm) and 20 inches spread (20 cm).
  • Soil requirements: well drained potting soil with plenty of sand in it, and rich in organic matter; the pH should be slightly acidic or neutral (6.1 to 7.3).
  • Watering: water frequently in summer but never excessively, only allowing the top inches of soil to go dry. Once established, it becomes drought resistant, which makes it an easy bromeliad to grow.

16. Air Plants (Tillandsia Spp.)

Air Plants

Terrariums are they places where you can let your gardening imagination run wild, and air plants are so weird and alien looking that you can’t do without one if you are after the wow factor…

With their long, often curly or spiraling, leaves, and beautiful central tufts, these plants literally grow in air, and they make perfect choices for even the simplest type of terrarium: an open bowl hanging from the ceiling…

  • Light exposure: bright and indirect light or filtered light.
  • Maximum size: usually within 8 inches in length (20 cm).
  • Soil requirements: they don’t require soil.
  • Watering: use a spray bottle and mist the plant regularly every day or two.

17. Button Fern (Pellea Rotundifolia)

Button Fern (1)

Button fern is excellent to bring light green and lush foliage to even a small terrarium.

With its long and slender brown stems adorned by regular, oval leaflets that look will like a fairy staircase to a child, this little but string fern is a safe choice for dry terrariums, as it is drought resistant.

So, with button fern you can have the “leafy look” even in a dry setting, and without much watering, and you can even use it as backdrop to succulents to make a produce a nice contrast.

  • Light exposure: it prefers bright indirect light when it’s cold, and filtered light or dappled shade when it is hot.
  • Maximum size: 10 inches in height and spread (25 cm).
  • Soil requirements: peat moss based potting soil, with sand mixed in for drainage; the ideal pH range is between 5.0 and 6.0, so, slightly acidic.
  • Watering: never allow the soil to go soggy; water regularly when the top inch of the soil is dry, even if it will tolerate drought, and it can survive with minimal watering.

18. Living Stones (Lithops Spp.)

Living Stones

Arguably the best plants for small and dry terrariums, these wonders of Nature look like colorful pebbles rather than actual plants, so, they are ideal if you want to grow a desert themed terrarium garden.

The colors are of an impressive range, from purple to yellow, via literally all the colors of the rainbow in every shade imaginable, and they often have two different shades, combined like only Mother Nature can do.

They are extremely slow growers, which means that once you plant them in your terrarium, you can almost forget about them. But when you look at them, they will never fail to amaze you.

  • Light exposure: living stones can stand even strong direct sunlight.
  • Maximum size: they never grow to more than 3 inches tall and across (7.5 cm), but some varieties are much smaller.
  • Soil requirements: extremely well drained cactus potting soil, with lots of sand in it, with pH between 6.6 and 7.5.
  • Watering: only give living stones a little bit of water once the soil has gone completely dry. Never overwater nor allow any water to rest around the plant.

19. Pies From Heaven (Kalanchoe Rhombopilosa)

Pies from Heaven (1)

Still looking for that weird looking wonder plant for your terrarium? Look no further! Pies from heaven can turn even the most unimaginative terrarium into a small garden of originality and surprise…

It has, in fact, striking looking rosettes of leaves that start small and widen at the end, with a large and zigzagging or undulated outer edge.

To some, this shape may bring to mind the teeth of an open mouth of some strange marine creature.

But then, there is also the coloring… These leaves are of a pale grey shade with dark purple brown spots, which look a bit likes dabs of paint added on by some surreal artist.

  • Light exposure: it can stand bright direct light for small periods of time, but bright indirect light and some shade is actually better.
  • Maximum size: up to 12 inches tall (30 cm) and 6 in spread (15 cm).
  • Soil requirements: very well drained loose cactus potting soil; it is not fussy about the pH.
  • Watering: only water without excess once the soil has gone completely dry.

20. Pregnant Onion (Albuca Bracteata)

Pregnant Onion

But terrariums are also the small gardens in glass where you want bold, strikingly sculptural shapes…

Pregnant onion, with a smooth, waxy texture, has an amazingly large above-ground light green bulb, smooth in texture, which looks like a ceramic pot… 

On top of it, it will produce just a few, beautiful, waxy and arching long and rich leaves, which look like they are growing out of a round stone or jar…

Still going higher, when it blossoms, it will fill your terrarium with up to 300 (!!!) start shaped flowers with six white petals with light chartreuse green stripes in them.

  • Light exposure: indoors, it likes bright indirect or filtered light.
  • Maximum size: when in bloom, it will reach 3 feet (90 cm), but the leaves do not grow more than 2 feet in length (60 cm).
  • Soil requirements: good, well drained cactus potting soil with some peat mixed in; it wants neutral pH, and apparently it adjusts to slightly acidic pH, down to 5.8.
  • Watering: only water when the top soil is dry; never overwater, nor leave droplets by the bulb.

Your Terrarium: A Green Message in a Bottle

Your Terrarium: A Green Message in a Bottle

Keeping in mind the key distinction between open and close terrariums, there is a very wide choice of strikingly beautiful plants for your imagination to grow small gardens inspired by rain forests, desert scenes, leafy and shady temperate forests, underwater landscapes, outer space planets or, of  course, fairy tales.

Put a bit of yourself, of your personality in your terrarium, add what your children like, choose original, unusual looking or every colorful plants, and Nature will help you write a green message in a bottle to express your artistic vision and – if you want – wow your guests too!

Updated on by Amber Noyes

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