---
title: Glass Jar Garden: Build a terrarium, seal it and watch it live
description: A terrarium simulator in your browser. Layer the soil, plant real species, add springtails and isopods, seal the jar and watch moss creep, plants grow and the water cycle run, day by day.
url: https://glassjar.garden/
---

# Glass Jar Garden

A terrarium simulator in your browser. Layer the soil, plant real species, add springtails and isopods, seal the jar and watch moss creep, plants grow and the water cycle run, day by day.

Free, in the browser, no account. Built by Arbaz Siddiqui (https://www.arbazsiddiqui.me).

## What you can do

- Build a jar layer by layer: drainage, a barrier, soil and a top dressing, from 41 substrates.
- Plant it from 49 plants and 31 mosses, add stones and wood, and a cleanup crew of springtails and isopods.
- Seal it or leave it open, then watch it live day by day: water cycles, moss spreads, plants grow, leaves fall, mould can bloom.
- Care for it: vent, mist, prune, or forget it and watch what happens.
- Start from 26 starter jars: https://glassjar.garden/starter-jars/
- Share a jar as a link that keeps living, record a timelapse, take photos.

## Read

- [Starter jars](https://glassjar.garden/starter-jars/): 26 terrarium recipes, easy to hard.
- [Terrarium guide](https://glassjar.garden/guide/): basics, how a sealed jar works, and an encyclopedia of plants, mosses, critters, soils, stones and moulds.
- [llms.txt](https://glassjar.garden/llms.txt) and [llms-full.txt](https://glassjar.garden/llms-full.txt).