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Glass Jar Garden
Build a terrarium, seal it, and watch it live. Pour the layers, plant real species, add a cleanup crew, then let the days run: the water cycles, moss creeps, plants grow, leaves fall, and mould blooms when something is off.
- Open it
- glassjar.garden · 26 starter jars · the guide
- Catalogue
- 49 plants · 31 mosses · 10 critters · 41 soils and layers · 32 stones and woods · 10 moulds
- Simulation
- Day by day: water, light, humidity, temperature, nutrients, growth, mould and colonies of springtails and isopods
- Stack
- three.js with custom shaders, Vite, no framework · Cloudflare Pages with share links on R2
Building
Every tool works like the real one. Soil pours from a scoop and piles up, the ground is shaped with a brush, moss is pressed down in pieces, and water goes in by the millilitre. Round jars, bottles and cloches fill along their curved glass, and stones settle onto whatever is under them.
The simulation
Each day the jar works out where the water is, layer by layer, how humid the air is under the lid, how much light each plant gets, and what that does to its health. Rot, grey mould, drought and heat stress all come out of the same numbers. Before a jar is sealed it shows a one-year forecast, and the guide explains every mechanism with the numbers it runs on.
Living on
Jars keep living while you are away and catch up when you return. Share one as a link that always shows it as it is now, record a timelapse of its whole life as a video, or take photos.