Photo: (of code) -xfi-CC BY-SA 3.0via Wikimedia Commonsresized / cropped
Diellia falcata Plant Care
Asplenium dielfalcatum Viane
Updated · Sources · How we source care data
This fern's distinctively triangular fronds with deep grooves make it easily recognizable. Originating from Southeast Asia, Asplenium dielfalcatum is highly sought after by plant collectors for its unique appearance and ability to thrive in low light conditions. Its striking visual appeal and adaptability make it a valuable addition to any collection.
Every 7–10 days
Bright indirect light
60–75°F
50–70%
At a glance
How do you care for Diellia falcata?
Water Diellia falcata every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 60–75°F (16–24°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Diellia falcata Native To?
What Is the Diellia falcata?
Diellia falcata (Asplenium dielfalcatum) belongs to the Aspleniaceae family within the Asplenium genus. Diellia falcata is native to the island of Oʻahu, Hawaii. Diellia falcata is also known as Lindsaea falcata, Schizoloma falcatum.
Diellia falcata displays a compact, clumping fern growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Diellia falcata produces non-flowering plant.
Leaf size: approximately 12 inches.
How Often Should You Water a Diellia falcata?
Asplenium dielfalcatum 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 Diellia falcata Need?
Diellia falcata thrives in bright indirect light. Avoid placing Diellia falcata in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Diellia falcata Prefer?
Asplenium dielfalcatum grows best at temperatures of 60–75°F. Diellia falcata 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 Diellia falcata?
Moist, well-draining soil with high organic matter content. Good drainage is essential for Diellia falcata to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Diellia falcata?
Feed Diellia falcata 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 Diellia falcata?
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 Diellia falcata?
Diellia falcata can be propagated through spores, division of rhizomes. Similar propagation techniques also apply to birds nest fern plant care, which shares the same genus.
Is the Diellia falcata Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Diellia falcata, 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 Diellia falcata?
Diellia falcata is susceptible to spider mites, mealybugs, 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 Diellia falcata Need?
Diellia falcata grows outdoors in USDA Zone 10b – 11b. It survives winters down to planting zone 10b. Diellia falcata is native to the island of Oʻahu, Hawaii. In cooler regions, grow Diellia falcata as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 11b
Keep exploring plants
Diellia falcata 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 Asplenium genus — compare its care with other Asplenium species on PlantoScan.
Asplenium is part of the Aspleniaceae plant family — browse all Aspleniaceae genera and species.
Diellia falcata thrives in bright light and direct sun — see other bright-light plants.
More Asplenium Species
Other Asplenium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Asplenium dielfalcatum Viane, family Aspleniaceae (first published in Biol. Jaarb. 59: 159 (1991), nom. nov.: (1991)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Diellia falcata, 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: (of code) -xfi-, CC BY-SA 3.0, Wikimedia Commons — original.
- Hardiness zone: USDA Zone 10b – 11b, 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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