Ash Leaf Fern Plant Care
Diplazium fraxinifolium C.Presl
Updated · Sources · How we source care data
Diplazium fraxinifolium is a species of fern in the family Athyriaceae. It is found from India through Malesia to New Guinea.
Every 5–7 days
Filtered sunlight or partial shade
60–75°F
50–70%
At a glance
How do you care for Ash Leaf Fern?
Water Ash Leaf Fern every 5–7 days, letting the top layer of soil dry out between waterings, and give it filtered sunlight or partial shade. It prefers temperatures of 60–75°F (16–24°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
What Is the Ash Leaf Fern?
Ash Leaf Fern (Diplazium fraxinifolium) belongs to the Athyriaceae family within the Diplazium genus.
Ash Leaf Fern displays a fern with spreading habit growth habit, reaching up to 2 ft tall with a spread of approximately 3 ft. Ash Leaf Fern produces non-flowering plant.
Leaf size: approximately 12 inches.
How Often Should You Water a Ash Leaf Fern?
Diplazium fraxinifolium requires watering every 5–7 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 5–7 days
Let soil partially dry between waterings
What Light Does the Ash Leaf Fern Need?
Ash Leaf Fern thrives in filtered sunlight or partial shade. Avoid placing Ash Leaf Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Filtered sunlight or partial shade
What Temperature and Humidity Does the Ash Leaf Fern Prefer?
Diplazium fraxinifolium grows best at temperatures of 60–75°F. Ash Leaf 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 Ash Leaf Fern?
Rich, well-draining soil with high organic content. Good drainage is essential for Ash Leaf Fern to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Ash Leaf Fern?
Feed Ash Leaf 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 Ash Leaf 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 Ash Leaf Fern?
Ash Leaf Fern can be propagated through spores, division of rhizomes. Similar propagation techniques also apply to diplazium assimile plant care, which shares the same genus.
Is the Ash Leaf Fern Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Ash Leaf 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 Ash Leaf Fern?
Ash Leaf Fern is susceptible to spider mites, aphids, 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 Ash Leaf Fern Need?
Ash Leaf Fern grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Ash Leaf Fern as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Ash Leaf 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 Diplazium genus — compare its care with other Diplazium species on PlantoScan.
Diplazium is part of the Athyriaceae plant family — browse all Athyriaceae genera and species.
Ash Leaf Fern produces blooms — browse other flowering plants.
More Diplazium Species
Other Diplazium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Diplazium fraxinifolium C.Presl, family Athyriaceae (first published in Reliq. Haenk. 1: 49. 1825) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Ash Leaf 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.
- Hardiness zone: USDA Zone 13a, 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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