---
title: Moss: how the terrarium simulator works | Glass Jar Garden
description: Moss creeps from its edges in damp air and browns back when dry. It gains ground two ways: thickening where it is, and creeping outward from its edge. It...
url: https://glassjar.garden/guide/how-it-works/moss/
---

How it works

# Moss

Moss creeps from its edges in damp air and browns back when dry.

- It gains ground two ways: thickening where it is, and creeping outward from its edge.
- It climbs stones and wood it can live on, never rock of the wrong pH.
- Aquarium mosses creep up the glass of a wet sealed tank.
- Below 42% of its needs met it stops and slowly browns back.
- It drinks from the air as much as the soil.

## Stats

- Browns back below: 42% of needs

- Recedes: up to 1% of its area a day

- Climbs glass: sealed, humidity at least 92%

[See it in a jar](https://glassjar.garden/?guide=how-it-works/moss)

[← Plants](https://glassjar.garden/guide/how-it-works/plants/) · [Critters →](https://glassjar.garden/guide/how-it-works/critters/)