---
title: Many-fruited thyme-moss in a terrarium | Glass Jar Garden
description: Many-fruited thyme-moss (Plagiomnium affine): Low lawns of round leaves on trailing stems in moist woodland. Needs light 1,000 to 25,000 lux, humidity 70 to...
url: https://glassjar.garden/guide/moss/plagiomnium-affine/
---

Moss

# Many-fruited thyme-moss
Plagiomnium affine

Easy · Fine in a closed jar

Low lawns of round leaves on trailing stems in moist woodland.

## What the simulation uses

- Light: 1,000 to 25,000 lux (The brightness it grows well in.)

- Humidity: 70 to 100 % RH (Air moisture it is happy in; below the lower end it dries out.)

- Temperature: 8 to 24 °C (Comfortable range; outside it growth slows.)

- Dies at: below -20 or above 40 °C (Days beyond these temperatures kill it.)

- Soil pH: 5.5 to 7 pH (Soil acidity it prefers.)

- Grows up: 0.08 cm/month (How fast it gains height in good conditions.)

- Spreads: 0.4 cm/month (How fast its edge creeps outwards.)

- Thickens: 4 %/month (How fast its cover fills in on its own ground.)

- Copes with wet: fair (How well it stands soggy soil; poor means rot comes quickly.)

- Copes with still air: good (Sealed jars have still air; poor means grey mould finds it.)

- Copes with shade: good (How well it holds on in dim light.)

- Copes with drying: fair (How well it survives the jar drying out.)

- Water use: 0.04 ml/cm²/day (Water that evaporates off the cushion each day in room air.)

- Holds water: 0.2 ml/cm² (Water a cm² of moss soaks up and keeps.)

- Grows on: soil, stone (Where it can take hold and spread. Moss that cannot grow on stone thins out there.)

## Care

- Day length: 10 to 14 h

- Substrate: Moist

## What kills it

- drying
- waterlogging

## Description
The trailing stems can reach about 10 cm. It wants soil that is moist but never wet, in moderate light. Both drying out and waterlogging will kill it.

Also called thyme moss.

Estimated, where sources were thin: growth rate; temp_c.

## Sources

- [en.wikipedia.org/wiki/Plagiomnium_affine](https://en.wikipedia.org/wiki/Plagiomnium_affine)
- [nora.nerc.ac.uk/id/eprint/1131/1/BRYOATT.pdf](https://nora.nerc.ac.uk/id/eprint/1131/1/BRYOATT.pdf)
- [digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1054&context=bryo-ecol-subchapters](https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1054&context=bryo-ecol-subchapters)

[Grow it in a jar](https://glassjar.garden/?guide=moss/plagiomnium-affine)

[Knight's plume moss](https://glassjar.garden/guide/moss/ptilium-crista-castrensis/) · [Mood moss](https://glassjar.garden/guide/moss/dicranum-scoparium/) · [All moss](https://glassjar.garden/guide/moss/)