What to Put in a Terrarium Besides Plants? 9 Decor Ideas

Of course, plants will always be the star of the show in a terrarium.

But there’s more to a compelling display than plants alone.

Whether you’re recreating an idyllic beach scene, going all-in on the woodland look, or throwing caution to the winds and going full alien crystal landscape – there are decorative materials to help you get there.

In this article, we’ll cover the best of the natural, artificial (and just plain cool looking) materials so you can decide what to put in a terrarium besides plants.

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If there’s one thing for sure, terrarium decor is an exciting world to explore.

But, as with building a terrarium, it’s not as straightforward as you might think.

Our delicate ecosystems will need additions that will work harmoniously with the life inside, not against it.

Honestly, I’ve seen some bonkers articles proposing putting sweets and even salt in terrariums.

And while it’s a fantastic suggestion if you’re looking to destroy your plants, it’s a disastrous idea if you’re hoping to have a living piece of art at the end of it. For this reason, you mustn’t put anything in that might be unclean, could decay, or leech unwanted substances into the water system.

Thankfully, there are plenty of materials that fit the bill to choose from, so let’s dig in!

1 | Seed & Nut Pods

Let’s kick this off with my personal favorite way to level up your terrarium – seed and nut pods! 

A perfect way to add in some lovely earthy, tropical texture, but with some really interesting shapes – great for woodland terrariums.

It’s certainly not your everyday terrarium decor. 

Seed pods aren’t just aesthetically pleasing; they also provide natural spots for isopods to hide and breed.

Or, if your terrarium isn’t bioactive, you can liven up the crevices with a touch of vibrant moss.

👉 Shop magnolia seed pods on the Terrarium Tribe store.

2 | Rocks

Terrarium rocks flaunt endless design opportunities.

Whether you want to create an adorable pathway for mythical creatures, construct a mighty cave, or simply desire a stunning monolithic centerpiece – rocks are your new best friend. 

And with so much natural variation (we technically live on a big rock – don’t we?), you’re unlikely to run out of options any time soon. 

Dragon stone (Ohko stone) is a great place to start.

The natural crevices and unique texture create a fantastic, rugged look. And they provide lots of opportunities for 3D planting with the more dappled pieces. 

👉 Shop our dragon stone.

3 | Wood

There’s a level of depth and character that only wood can offer.

With each piece being as unique as your terrarium, it will provide much-needed contrast, texture, and warmth. You can use it in a stylized way or more organically to give your terrarium a grown-in feel.

After all, no “natural” environment would look complete without branches and trees, right?

Helpfully, we’ve already done a deep dive into the different types of terrarium wood, so be sure to head there to check out all of your options. Spoiler alert – there are many.

👉 Shop Mopani Wood on Etsy.

4 | Figurines

Figurines and toys can take your terrarium from a natural wonderland to a fully fleshed-out miniature story.

From tiny artists painting on the glassware to hot air balloon rides over the lush foliage, to cheeky nudist beach scenes and even zombie apocalypses. 

I’ve seen it all. 

Naturally, Jurassic Park themed terrariums are most popular (and for good reason), but there are no boundaries with what you can create. 

Fairy terrariums have a tonne of options too.

Get wild. Let your hair down. This is your art, and you make the rules!

👉 Shop fun terrarium miniatures on Etsy!

5 | Resin

Resin is quite a versatile material, but it’s mostly used to create a “fake water” effect in the terrarium world.

Perfect for your beachside scene, or idyllic stream.

Most people like to add a touch of blue dye to really sell the aquatic factor, but in my opinion, dye opens up even more opportunities!

You could add red and create a volcanic scene, perhaps, or brown to depict mud. 

6 | Sand

While sand is predominately known on the terrarium scene for its substrate-supplementing abilities, it also provides plenty of scope for decoration.

In a beachy piece, it’s the golden sand to your resin sea.

Not to mention sand art. 

A wonderful way to level up your terrarium, merge crafts, and add in some tasteful color. 

There’s lots to consider. Like using aquarium sand, so the colors don’t leech, so be sure to check out our article on terrarium sand to get into the nitty-gritty details. 

7 | Crystals

Can you put crystals in a terrarium? Of course!

There are heaps of shapes, textures, and colors to experiment with. 

In fact, using crystals is the best way to add a splash of color if you’re wanting to stick to natural elements (sometimes I just don’t want to add anything artificial to my natural paradise). 

You could try using a larger piece as the main feature to plant around, or smaller rounded stones to use as gravel. 

Check out my Crystal Terrarium Guide for more.

👉 Shop crystals on Etsy.

8 | Strings and Hooks

We’re getting a little more abstract here, but have you considered… floating terrarium elements? 

After all, why should all terrarium planting be terrestrial? 

Not to mention that if you have glassware on the taller side, it’s a wonderful way to fill up some of that empty space. 

9 | Shells

It’s finally time. The shells you pocketed from your 2005 beach getaway at long last have a use. Dig them out and pop them straight in your latest terrarium,

Smaller shells can be placed decoratively, and larger shells can even be planted in themselves!

Naturally, you’ll have to choose a plant that won’t outgrow such a small container, but it’s a great way to spice things up a little. 

There you have it. Hopefully, you have some good ideas as to what to put in a terrarium besides plants.

What terrarium decor addition are you desperate to try next?

Of course, If I’ve missed anything, let me know in the comments!

And if you already have your decor items picked out, now’s a good time to check out our online terrarium store for the rest of your supplies.