Narrowleaf Forkmoss Plant Care

Thamnobryum angustifolium (Holt) Nieuwl.

Updated · Sources · How we source care data

Thamnobryum angustifolium, the Derbyshire feathermoss, is a species of moss in the Neckeraceae family. It is endemic to Derbyshire, England, being restricted to a single SSSI, where the main colony covers about 3 square metres (32 sq ft) of a single rock face, with small subsidiary colonies nearby.

Water

Every 3–5 days

Light

Low to medium indirect light

Temp

50–75°F

Humidity

60–80%

At a glance

How do you care for Narrowleaf Forkmoss?

Water Narrowleaf Forkmoss every 3–5 days, letting the top layer of soil dry out between waterings, and give it low to medium indirect light. It prefers temperatures of 50–75°F (10–24°C) and 60–80% humidity.

Where Is the Narrowleaf Forkmoss Native To?

Native range1 country

What Is the Narrowleaf Forkmoss?

Narrowleaf Forkmoss (Thamnobryum angustifolium) belongs to the Neckeraceae family within the Thamnobryum genus. Narrowleaf Forkmoss is native to Derbyshire, England, being restricted to a single SSSI.

Narrowleaf Forkmoss displays a low mat-forming growth habit, reaching up to 0.1 ft tall with a spread of approximately 0.5 ft. Narrowleaf Forkmoss produces non-flowering.

Leaf size: approximately 0.2 inches.

How Often Should You Water a Narrowleaf Forkmoss?

Thamnobryum angustifolium requires watering every 3–5 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 3–5 days

Let soil partially dry between waterings

What Light Does the Narrowleaf Forkmoss Need?

Narrowleaf Forkmoss thrives in low to medium indirect light. The optimal light range is 50–250 lux. Avoid placing Narrowleaf Forkmoss in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Low to medium indirect light

50–250 lux

What Temperature and Humidity Does the Narrowleaf Forkmoss Prefer?

Thamnobryum angustifolium grows best at temperatures of 50–75°F. Narrowleaf Forkmoss prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

50–75°F

Humidity

60–80%

What Soil Mix Works Best for a Narrowleaf Forkmoss?

Well-draining acidic soil with high organic matter content. Good drainage is essential for Narrowleaf Forkmoss to prevent waterlogging, which leads to root rot and fungal issues.

How Do You Repot a Narrowleaf Forkmoss?

Repot every 1-2 years. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Narrowleaf Forkmoss?

Narrowleaf Forkmoss can be propagated through spores, division of clumps. Similar propagation techniques also apply to alleghany forkmoss plant care, which shares the same genus.

Is the Narrowleaf Forkmoss Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Narrowleaf Forkmoss, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Narrowleaf Forkmoss?

Narrowleaf Forkmoss is susceptible to slugs, snails, mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Narrowleaf Forkmoss Need?

Narrowleaf Forkmoss grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Narrowleaf Forkmoss is native to Derbyshire, England, being restricted to a single SSSI. In cooler regions, grow Narrowleaf Forkmoss as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Narrowleaf Forkmoss is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Thamnobryum genus — compare its care with other Thamnobryum species on PlantoScan.

Thamnobryum is part of the Neckeraceae plant family — browse all Neckeraceae genera and species.

Narrowleaf Forkmoss copes with lower light than most plants — browse the full list of low-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Thamnobryum angustifolium (Holt) Nieuwl., family Neckeraceae (first published in Amer. Midl. Naturalist 5: 51 1917) — World Flora Online record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Narrowleaf Forkmoss, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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