Moss

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
- constant wet in still air
- deep shade
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.