Two ways to bring Halloween into a terrarium or onto a shelf: dress up a terrarium you already have with tiny skulls, ghosts and gravestones, or skip the styling altogether with a glass bowl arrangement that arrives ready to put down.
Halloween in miniature
The miniatures are sized for a terrarium: figures between 1 and 4 cm, light enough to rest on moss without crushing it, small enough that three or four fit next to your plants without crowding them out. The Haunted Cemetery set gives you gravestones and a skeleton hand for the classic look, while Skulls Gone Wild scatters small skulls through the moss for something quieter.
Glow after dark
A few sets, including Spooky Squad and the Halloween spooky crew, glow in the dark after a few minutes under a lamp. Switch the lights off on the 31st and the terrarium keeps the mood going on its own.
Or skip the styling entirely
A handful of glass bowl arrangements sit in this collection too, filled with real pumpkins, dried flat moss and pine cones, no terrarium and no styling required. The large glass bowl covers a full table centre on its own, and the medium version fits a windowsill or a sideboard. These use real, dried pumpkins rather than reusable pieces, so keep them dry and out of direct sun and they will hold their look for the season.
No terrarium yet?
The miniatures are decoration only, made to sit on top of soil, moss or gravel, so you will need a planted or empty terrarium to put them in. Our terrarium kits come with everything to build one from scratch, plants included. Once Halloween is over, the figures store easily in their box for next year, or you can add a set from the wider Halloween decoration collection to keep the rest of the room in theme.
Want the full walkthrough, five styling ideas, sizing guidance and how to keep the plants happy while it is spooky? Our Halloween terrarium guide covers all of it, step by step.
Common questions
What is a Halloween terrarium?
It is a regular plant terrarium or bottle garden dressed up with small Halloween figures, such as skulls, ghosts or a miniature graveyard, placed on top of the moss or soil rather than planted into it.
Will the figures fit in my terrarium?
Most pieces measure 1 to 4 cm, so they pass through the neck of a standard terrarium bottle or dome and sit comfortably in kits from around 15 cm wide. Check the size listed on each product to be sure.
Do I need a plant terrarium for these decorations?
No. They work just as well in an empty glass, a bowl of moss or next to a real pumpkin. A living terrarium just gives them a more natural setting.
Are the glow-in-the-dark figures safe near plants?
Yes. They are decorative plastic pieces with no batteries or chemicals that could affect the soil or the roots.
What is in the glass bowl arrangements?
Real pumpkins, dried flat moss and pine cones, already arranged in a glass bowl. They stand on their own and do not need a terrarium at all, unlike the miniatures.
Can I use this decoration after Halloween?
The skulls and graveyard pieces work through the rest of autumn. The glass bowls do too, as long as the pumpkins stay dry. Save the pumpkin and costume-specific figures for next year.
When should I set up my Halloween terrarium?
Halloween 2026 falls on Saturday, October 31. Most people add the decoration one to two weeks before, so there is time to enjoy it before the day itself.
