Photo: Martin Hannan-JonesCC BY 4.0via iNaturalistresized / cropped
Elkhorn Fern Plant Care
Platycerium superbum Joncheere & Hennipman
Updated · Sources · How we source care data
This plant's most distinctive feature is its striking antler-like fronds that resemble stag horns. Originating from Southeast Asia, Platycerium superbum is highly sought after by plant collectors for its unique appearance and ability to thrive as an epiphyte or mounted on walls. Its impressive size and dramatic growth make it a visually stunning addition to any plant collection.
Every 7–10 days
Bright indirect to dappled shade
60–80°F
50–70%
At a glance
How do you care for Elkhorn Fern?
Water Elkhorn Fern every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect to dappled shade. It prefers temperatures of 60–80°F (16–27°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Elkhorn Fern Native To?
What Is the Elkhorn Fern?
Elkhorn Fern (Platycerium superbum) belongs to the Polypodiaceae family within the Platycerium genus. Elkhorn Fern is native to Australia. Elkhorn Fern is also known as Staghorn Fern.
Elkhorn Fern displays an epiphytic, fern-like growth habit, reaching up to 2 ft tall with a spread of approximately 3 ft. Elkhorn Fern produces non-flowering.
Leaf size: approximately 24 inches.
How Often Should You Water a Elkhorn Fern?
Platycerium superbum requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the Elkhorn Fern Need?
Elkhorn Fern thrives in bright indirect to dappled shade. Avoid placing Elkhorn Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect to dappled shade
What Temperature and Humidity Does the Elkhorn Fern Prefer?
Platycerium superbum grows best at temperatures of 60–80°F. Elkhorn Fern prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
50–70%
What Soil Mix Works Best for a Elkhorn Fern?
Well-draining epiphytic mix with sphagnum moss and bark chips. Good drainage is essential for Elkhorn Fern to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Elkhorn Fern?
Feed Elkhorn 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 Elkhorn 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 Elkhorn Fern?
Elkhorn Fern can be propagated through spores, division of offsets (pups). Similar propagation techniques also apply to staghorn fern plant care, which shares the same genus.
Is the Elkhorn Fern Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Elkhorn 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 Elkhorn Fern?
Elkhorn Fern is susceptible to scale insects, mealybugs, spider 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 Elkhorn Fern Need?
Elkhorn Fern grows outdoors in USDA Zone 10b – 12. It survives winters down to planting zone 10b. Elkhorn Fern is native to Australia. In cooler regions, grow Elkhorn Fern as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 12
Keep exploring plants
Elkhorn 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 Platycerium genus — compare its care with other Platycerium species on PlantoScan.
Platycerium is part of the Polypodiaceae plant family — browse all Polypodiaceae genera and species.
Elkhorn Fern thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Platycerium superbum Joncheere & Hennipman, family Polypodiaceae (first published in Brit. Fern Gaz. 10: 114, f. 4, 5. 1970. (1970)) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Elkhorn 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.
- Photo: Martin Hannan-Jones, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 10b – 12, 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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