Glass Jar Garden

Moss

Fire moss as drawn in the simulator

Fire moss

Ceratodon purpureus

EasyOpen jar only

A low turf with red stalks, happiest on bright, dry soil.

What the simulation uses

Light
3,000 to 50,000 lux
The brightness it grows well in.
Humidity
30 to 80 % RH
Air moisture it is happy in; below the lower end it dries out.
Temperature
5 to 30 °C
Comfortable range; outside it growth slows.
Dies at
below -30 or above 48 °C
Days beyond these temperatures kill it.
Soil pH
5 to 6.5 pH
Soil acidity it prefers.
Grows up
0.04 cm/month
How fast it gains height in good conditions.
Spreads
0.06 cm/month
How fast its edge creeps outwards.
Thickens
1.75 %/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
fair
Sealed jars have still air; poor means grey mould finds it.
Copes with shade
fair
How well it holds on in dim light.
Copes with drying
excellent
How well it survives the jar drying out.
Water use
0.035 ml/cm²/day
Water that evaporates off the cushion each day in room air.
Holds water
0.25 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
Dry

What kills it

Description

One of the first mosses to settle on bare, disturbed ground, it grows slowly, around half a centimetre a year. It copes with some shade but not deep darkness. Use an open jar, because constant wet in still air does it in.

Also called redshank, purple horn-toothed moss.

Estimated, where sources were thin: temp_c; humidity_rh_pct.

Sources

Grow it in a jar