Hypnum cupressiforme
Cypress-leaved Plait Moss, Hypnum Moss, Sheet Moss, Carpet Moss
Found on every continent except Antarctica, this may be the most widespread moss on Earth. It forms smooth, dense mats of creeping stems covered in overlapping sickle-shaped leaves that look like tiny cypress fronds. It grows on bark, rocks, walls, logs, and soil with equal ease. That adaptability carries over to terrariums, where it does well in both open and closed setups with minimal fuss.

Care
Prefers high humidity, low light, with 5–24 °C, and reaches 10 cm at maturity.
Light
Humidity
Temperature
Soil
Moisture
Soil pH
Propagation
Native range
Native to Northern Europe, Middle Europe, Southwestern Europe, Southeastern Europe, Eastern Europe, Northern Africa, Macaronesia, West Tropical Africa, East Tropical Africa, Southern Africa, Siberia, Russian Far East, Caucasus, Western Asia, China, Eastern Asia, Indian Subcontinent, Indo-China, Malesia, Australia, New Zealand, Subarctic America, Western Canada, Eastern Canada, Northwestern U.S.A., North-Central U.S.A., Northeastern U.S.A., Southeastern U.S.A., and Southern South America.
Appearance
Growth habit
Leaf shape
Leaf texture
Frequently asked
Can Cypress-leaved Plait Moss grow in a closed terrarium?
Yes. Cypress-leaved Plait Moss prefers high (60–80%) humidity, which is what a closed terrarium provides, and tolerates shade-tolerant conditions.
Does Cypress-leaved Plait Moss need drainage?
Cypress-leaved Plait Moss prefers a moist substrate. Drainage is helpful but not critical; consistent moisture matters more.
What humidity does Cypress-leaved Plait Moss need?
Cypress-leaved Plait Moss does best in high (60–80%) humidity.
Is Cypress-leaved Plait Moss pet-safe?
Cypress-leaved Plait Moss is considered non-toxic to common household pets.
How tall does Cypress-leaved Plait Moss grow?
Cypress-leaved Plait Moss typically reaches 2–10 cm at maturity.
How do you propagate Cypress-leaved Plait Moss?
Cypress-leaved Plait Moss can be propagated by division.
References
- 1
Wikipedia - Hypnum cupressiforme
https://en.wikipedia.org/wiki/Hypnum_cupressiforme - 2
Terrarium Tribe - Hypnum Moss
https://terrariumtribe.com/terrarium-plants/hypnum-cupressiforme-sheet-moss/ - 3
- 4
British Bryological Society
https://www.britishbryologicalsociety.org.uk/learning/species-finder/hypnum-cupressiforme/ - 5
GBIF - Hypnum cupressiforme
https://www.gbif.org/species/2681972 - 6
- 7
Bantam.Earth - Sheet Moss Care Guide
https://bantam.earth/sheet-moss-hypnum-cupresiforme/ - 8
The Bio Dude - Hypnum Moss Care Sheet
https://www.thebiodude.com/blogs/live-plants-mosses-and-growing-guides/hypnum-moss-care-sheet - 9
- 10
USDA Plants Database
https://plants.usda.gov/plant-profile/HYCU4