Blechnum Sword Fern

Hard Fern

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Hardy evergreen fern with upright fronds; often confused with sword ferns due to leaf shape. Prefers moist, acidic soil and partial shade.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
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Plant Details

Common Name Hard Fern
Family Blechnaceae
Genus Blechnum
Species Spicant
Variety N/A
Origin Europe / Asia
Blooming Foliage plants, spores release in summer
Leaf Color dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

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Soil

Rich humus soil mixed with peat and perlone for drainage; acidic pH preferred

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Watering

Keep soil consistently moist but not waterlogged; reduce watering during winter dormancy

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Sunlight & Care

Thrives in partial shade to full shade; avoid direct harsh sunlight which scorches fronds

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Fertilization

Apply balanced liquid fertilizer monthly during growing season (Spring/Summer)

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Pruning

Remove brown or damaged fronds at the base to encourage new growth

Pest Control Aphid Mealybug Scale Insect

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
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Growing Parameters

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Temperature
41° – 81°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 80%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
600 – 12000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
800 – 2500
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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Common Problems

Something wrong with your Blechnum Sword Fern? Select a symptom to diagnose and fix the issue.

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