Rare Filmy Fern Plant Care
Hymenophyllum rarum R.Br.
Updated · Sources · How we source care data
Hymenophyllum rarum, the narrow filmy-fern, is a species of fern from the family Hymenophyllaceae. This thin-leaved fern is commonly found in New Zealand and Tasmania, growing in patches on rocks and is epiphytic on trees and tree ferns, growing in moist gullies or rainforests.
Low to medium indirect light
At a glance
How do you care for Rare Filmy Fern?
Rare Filmy Fern grows best in low to medium indirect light.
Where Is the Rare Filmy Fern Native To?
What Is the Rare Filmy Fern?
Rare Filmy Fern (Hymenophyllum rarum) belongs to the Hymenophyllaceae family within the Hymenophyllum genus. Rare Filmy Fern is native to New Zealand and Tasmania, growing in patches on rocks.
Rare Filmy Fern displays a compact, creeping fern growth habit, reaching up to tall with a spread of approximately . Rare Filmy Fern produces tiny, inconspicuous flowers.
What Light Does the Rare Filmy Fern Need?
Rare Filmy Fern thrives in low to medium indirect light. Avoid placing Rare Filmy Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Low to medium indirect light
What Soil Mix Works Best for a Rare Filmy Fern?
Loose, well-draining soil mix with high organic content. Good drainage is essential for Rare Filmy Fern to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Rare Filmy Fern?
Repot every 1-2 years in spring. 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 Rare Filmy Fern?
Rare Filmy Fern can be propagated through spores, division of rhizomes. Similar propagation techniques also apply to kidney fern plant care, which shares the same genus.
Is the Rare Filmy Fern Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Rare Filmy Fern, 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 Rare Filmy Fern?
Rare Filmy Fern is susceptible to spider mites, scale insects, mealybugs. 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.
Keep exploring plants
Rare Filmy Fern 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 Hymenophyllum genus — compare its care with other Hymenophyllum species on PlantoScan.
Hymenophyllum is part of the Hymenophyllaceae plant family — browse all Hymenophyllaceae genera and species.
Rare Filmy Fern copes with lower light than most plants — browse the full list of low-light plants.
More Hymenophyllum Species
Other Hymenophyllum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Hymenophyllum rarum R.Br., family Hymenophyllaceae (first published in Prodr. Fl. Nov. Holland. 159. 1810. HB. 58 (pt.). Chr. (1810)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Rare Filmy Fern, 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.
- 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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