Polystichum polyblepharum

Korean Rock Fern

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Evergreen perennial fern with glossy dark green fronds and a leathery texture. Native to East Asia, ideal for shaded indoor spaces or temperate outdoor gardens requiring low maintenance.
yard Outdoor plants wb_sunny Shade / Half-shade pets Pet Friendly
info Pot sizes shown are estimations. Real dimensions may vary depending on the merchant.
Merchant Pot Size Availability Price
Amazon.com 5-6 in Out of Stock $34.99 Buy
info

Plant Details

Common Name Korean Rock Fern
Family Dryopteridaceae
Genus Polystichum
Species Polyblepharum
Origin China, Japan, Korea
Blooming Ferns reproduce via spores; no true flowers produced.
Leaf Color Glossy dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Peat-based, well-draining mix with high organic content; slightly acidic preferred.

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Watering

Keep soil consistently moist but not waterlogged. Increase humidity via misting during dry winter months.

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Sunlight & Care

Prefers deep shade or partial shade. Direct sun scorches fronds; suitable for low-light indoor corners.

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Fertilization

Apply diluted liquid fertilizer monthly during active growth (Spring to Autumn).

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Pruning

Remove dead or brown fronds at the base to encourage new growth and maintain aesthetic.

Pest Control Aphid Scale Insect Snail Spider Mite

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
50° – 75°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
45% – 80%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
800 – 10000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
500 – 2000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
30% – 70%
% volumetric
Water content in the growing medium
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Soil EC
200 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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