Glass Jar Garden

Moss

Common apple-moss as drawn in the simulator

Common apple-moss

Bartramia pomiformis

ModerateFine in a closed jar

Blue-green tufts with round apple-like capsules on shady rock.

What the simulation uses

Light
800 to 6,000 lux
The brightness it grows well in.
Humidity
70 to 95 % RH
Air moisture it is happy in; below the lower end it dries out.
Temperature
5 to 22 °C
Comfortable range; outside it growth slows.
Dies at
below -25 or above 42 °C
Days beyond these temperatures kill it.
Soil pH
4.5 to 6 pH
Soil acidity it prefers.
Grows up
0.07 cm/month
How fast it gains height in good conditions.
Spreads
0.04 cm/month
How fast its edge creeps outwards.
Thickens
0.6 %/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
good
How well it holds on in dim light.
Copes with drying
fair
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
Moist

What kills it

Description

In the wild it lives on humid, shaded ledges and banks, usually on acid rock. The leaves curl up when it gets too dry. Keep it cool and evenly damp, because heat, soggy soil and drying all hurt it.

Also called apple moss.

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

Sources

Grow it in a jar