Dicranum polysetum

Rugose Fork-moss, Wavy Dicranum, Waxyleaf Moss, Corrugated Broom Moss

Moderate careTerrestrialNon-toxic5–15 cm

A large moss forming open patches up to 15 cm tall, recognised by its strongly undulate (wavy) leaves and stems covered in white felty rhizoids that anchor it to the substrate. Native to boreal and temperate forests across the Northern Hemisphere, it grows on acidic soils in heathy woodlands, mires, and conifer plantations. Its corrugated texture and tall stature give it a strong visual presence in closed terrariums, though it needs cool, humid conditions to do well.

Build a terrarium with this plant
Rugose Fork-moss image

Care

Prefers high humidity, indirect light, with 2–22 °C, and reaches 15 cm at maturity.

Light

Indirect light(preferred)Shade tolerant

Humidity

High (60–80%)(preferred)Very high (80%+)

Temperature

0°C20°C40°C
2°C – 22°C

Soil

Peat moss(preferred)Moisture retentiveSphagnum mix

Moisture

Moist(preferred)Wet

Soil pH

4.5 – 6

Propagation

Divide existing patches into smaller clumps and press onto moist, acidic substrate. Keep humidity high and temperatures cool until established. The dense rhizoid mat helps fragments anchor quickly.

Frequently asked

Can Rugose Fork-moss grow in a closed terrarium?

Yes. Rugose Fork-moss prefers high (60–80%) humidity, which is what a closed terrarium provides, and tolerates indirect-light-loving conditions.

Does Rugose Fork-moss need drainage?

Rugose Fork-moss prefers a moist substrate. Drainage is helpful but not critical; consistent moisture matters more.

What humidity does Rugose Fork-moss need?

Rugose Fork-moss does best in high (60–80%) humidity.

Is Rugose Fork-moss pet-safe?

Rugose Fork-moss is considered non-toxic to common household pets.

How tall does Rugose Fork-moss grow?

Rugose Fork-moss typically reaches 5–15 cm at maturity.

How do you propagate Rugose Fork-moss?

Rugose Fork-moss can be propagated by division.

References

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