Image: AI generated
Japanese Holly Fern Plant Care
Cyrtomium falcatum (L.f.) C.Presl
Updated · Sources · How we source care data
Cyrtomium falcatum is a species of fern, commonly known as house holly-fern and Japanese holly fern, in the wood fern family Dryopteridaceae. It is native to eastern Asia.
Every 7–14 days
Bright indirect to low light
60–75°F
50–70%
At a glance
How do you care for Japanese Holly Fern?
Water Japanese Holly Fern every 7–14 days, letting the top layer of soil dry out between waterings, and give it bright indirect to low light. It prefers temperatures of 60–75°F (16–24°C) and 50–70% humidity. Fertilize it every 6 months during the growing season. The ASPCA lists it as non-toxic to cats and dogs.
Where Is the Japanese Holly Fern Native To?
What Is the Japanese Holly Fern?
Japanese Holly Fern (Cyrtomium falcatum) belongs to the Dryopteridaceae family within the Cyrtomium genus. Japanese Holly Fern is native to eastern Asia. Japanese Holly Fern is also known as Fortune's Holly Fern, Cyrtomium Fern.
Japanese Holly Fern displays a clumping fern growth habit, reaching up to 2.5 ft tall with a spread of approximately 2.5 ft. Japanese Holly Fern produces non-flowering.
Leaf size: approximately 18 inches.
How Often Should You Water a Japanese Holly Fern?
Cyrtomium falcatum requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Japanese Holly Fern Need?
Japanese Holly Fern thrives in bright indirect to low light. Avoid placing Japanese Holly Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect to low light
What Temperature and Humidity Does the Japanese Holly Fern Prefer?
Cyrtomium falcatum grows best at temperatures of 60–75°F. Japanese Holly Fern prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
50–70%
What Soil Mix Works Best for a Japanese Holly Fern?
Well-draining, rich potting mix with added peat moss and perlite. Good drainage is essential for Japanese Holly Fern to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Japanese Holly Fern?
Feed Japanese Holly Fern every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Japanese Holly Fern?
Repot every 2-3 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 Japanese Holly Fern?
Japanese Holly Fern can be propagated through division of rhizomes, spores.
Is the Japanese Holly Fern Toxic to Pets and Children?
Non-toxic to cats and dogs
Source: ASPCA Animal Poison Control Center plant list. View the ASPCA entry
Non-toxic to humans and pets
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 Japanese Holly Fern?
Japanese Holly Fern is susceptible to spider mites, scale insects. 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 Japanese Holly Fern Need?
Japanese Holly Fern grows outdoors in USDA Zone 6a – 9b. It survives winters down to planting zone 6a. Japanese Holly Fern is native to eastern Asia.
Hardiness Zone
Zone 6a – 9b
Keep exploring plants
Japanese Holly 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 Cyrtomium genus — compare its care with other Cyrtomium species on PlantoScan.
Cyrtomium is part of the Dryopteridaceae plant family — browse all Dryopteridaceae genera and species.
Japanese Holly Fern 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: Cyrtomium falcatum (L.f.) C.Presl, family Dryopteridaceae (first published in Tent. Pterid. 86. 1836) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: The ASPCA lists Japanese Holly Fern as non-toxic to cats and dogs. Source: ASPCA Toxic and Non-Toxic Plant List.
- Photo: AI-generated illustration (labelled on the image).
- Hardiness zone: USDA Zone 6a – 9b, estimated from the plant's typical growing conditions.
- 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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