Racomitrium canescens

Hoary Fringe-moss, Silver Moss, Grey Fringe-moss

Easy careTerrestrialNon-toxic1–5 cm

A drought-tolerant moss with a wide distribution across the Northern Hemisphere. It forms low, silvery-green cushions and mats on sandy soils, gravel, and calcareous grassland. White-tipped leaf awns give it a frosted, hoary appearance when dry. It handles desiccation and poor soils well, making it one of the better mosses for open terrariums, rock gardens, and dry landscape setups. Now reclassified as Niphotrichum canescens.

Build a terrarium with this plant

Photo by Michel Langeveld·CC BY 4.0

Care

Prefers medium humidity, bright indirect light, with -5–25 °C, and reaches 5 cm at maturity.

Light

Bright indirect(preferred)Indirect light

Humidity

Medium (40–60%)(preferred)Low (30–40%)High (60–80%)

Temperature

-10°C15°C40°C

-5°C – 25°C

Soil

Sandy(preferred)RockyWell draining

Moisture

Dry(preferred)Moist

Soil pH

5.5 – 7.5

Propagation

Separate clumps and press onto well-drained sandy or gravelly substrate. Keep lightly moist with good airflow until established.

Native range

Native to Northern Europe, Middle Europe, Southwestern Europe, Southeastern Europe, Eastern Europe, Northern Africa, Siberia, Russian Far East, Middle Asia, Caucasus, China, Mongolia, Eastern Asia, Indian Subcontinent, Australia, New Zealand, Subarctic America, Western Canada, Eastern Canada, Northwestern U.S.A., North-Central U.S.A., Northeastern U.S.A., Southwestern U.S.A., South-Central U.S.A., and Southeastern U.S.A..

Appearance

Growth habit

ClumpingCreeping

Leaf shape

Lance

Leaf texture

Rough

Frequently asked

Can Hoary Fringe-moss grow in a closed terrarium?

Hoary Fringe-moss prefers medium (40–60%) humidity, which is below the level a closed terrarium typically maintains. It is better suited to an open terrarium or houseplant setup.

Does Hoary Fringe-moss need drainage?

Yes. Hoary Fringe-moss prefers a dry-leaning substrate and benefits from a drainage layer to prevent root rot.

What humidity does Hoary Fringe-moss need?

Hoary Fringe-moss does best in medium (40–60%) humidity.

Is Hoary Fringe-moss pet-safe?

Hoary Fringe-moss is considered non-toxic to common household pets.

How tall does Hoary Fringe-moss grow?

Hoary Fringe-moss typically reaches 1–5 cm at maturity.

How do you propagate Hoary Fringe-moss?

Hoary Fringe-moss can be propagated by division or spores.

References

1
GBIF — Niphotrichum canescens (Hedw.) Bedn.-Ochyra & Ochyra
https://www.gbif.org/species/7572691
2
World Flora Online — Racomitrium canescens (Hedw.) Brid.
https://www.worldfloraonline.org/taxon/wfo-0001172006
3
British Bryological Society — Racomitrium canescens
https://www.britishbryologicalsociety.org.uk/learning/species-finder/racomitrium-canescens/
4
Montana Field Guide — Silver Moss
https://fieldguide.mt.gov/speciesDetail.aspx?elcode=NBMUS6B040
5
MINICRAFT — Racomitrium canescens: The Hardy Moss of Dry Landscapes
https://www.theminicraft.com/blogs/moss-instructions/racomitrium-canescens-the-hardy-moss-of-dry-landscapes
6
Terrarium Creations — Racomitrium canescens Terrarium Care Guide
https://terrariumcreations.com/racomitrium-canescens-moss-in-terrariums-care-guide-to-help-your-moss-thrive/