Plagiomnium cuspidatum

Baby Tooth Moss, Toothed Plagiomnium Moss, Woodsy Thyme-moss

Easy careTerrestrialNon-toxic1–4 cm

A small moss with translucent, broadly oval leaves arranged in whorls on short upright stems, connected by long creeping stolons that trail across the substrate. The sharply toothed leaf margins give it its common name. It is acrocarpous, meaning it produces its spore capsules at the tips of upright stems rather than along side branches. Native to North America and widespread across Europe and Asia, it does best in shady, moist conditions and creates a convincing forest-floor layer in closed terrariums.

Build a terrarium with this plant
Baby Tooth Moss image

Care

Prefers high humidity, low light, with 5–24 °C, and reaches 4 cm at maturity.

Light

Shade tolerant(preferred)Indirect light

Humidity

High (60–80%)(preferred)Very high (80%+)Medium (40–60%)

Temperature

0°C20°C40°C
5°C – 24°C

Soil

Sphagnum mix(preferred)Moisture retentivePeat moss

Moisture

Moist(preferred)Wet

Soil pH

5.5 – 7.5

Propagation

Divide established mats into smaller clumps, making sure each portion includes some creeping stolons with roots. Place on moist substrate in shade and keep humidity high.

Frequently asked

Can Baby Tooth Moss grow in a closed terrarium?

Yes. Baby Tooth Moss prefers high (60–80%) humidity, which is what a closed terrarium provides, and tolerates shade-tolerant conditions.

Does Baby Tooth Moss need drainage?

Baby Tooth Moss prefers a moist substrate. Drainage is helpful but not critical; consistent moisture matters more.

What humidity does Baby Tooth Moss need?

Baby Tooth Moss does best in high (60–80%) humidity.

Is Baby Tooth Moss pet-safe?

Baby Tooth Moss is considered non-toxic to common household pets.

How tall does Baby Tooth Moss grow?

Baby Tooth Moss typically reaches 1–4 cm at maturity.

How do you propagate Baby Tooth Moss?

Baby Tooth Moss can be propagated by division.

References

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