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Polystichum polyblepharum - Japanese Lace Fern

Polystichum polyblepharum
Japanese Lace Fern

4,5/5
51 reviews
8 reviews
7 reviews
1 reviews
2 reviews

Two small young plants in a bucket planted last November: they have developed well this spring with beautiful foliage and a lovely habit in the shade in clay-limestone soil. I'm waiting to see if my little plants will withstand the hot, dry summer.

Solène G., 23/05/2025

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This plant carries a 12 months recovery warranty

More information

Value-for-money
A lovely evergreen fern with finely cut long green fronds measuring 50 to 60cm (20 to 24in).
Height at maturity
60 cm
Spread at maturity
40 cm
Exposure
Partial shade, Shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Recommended planting time February to April, September to October
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Description

Polystichum polyblepharum is a lovely fern, also known as Japanese lace fern or bear's paw fern, with deeply cut evergreen fronds in a lovely shade of dark green. The leaves can grow up to 50 to 60cm (20 to 24in) long.

 

This fern has a dense stump from which numerous large, evergreen fronds emerge. They are bipinnate and leathery, with a beautiful glossy dark green colour and tightly packed pinnules.

This fern has a remarkable ground cover effect in a clear and cool understory or in shaded flower beds, in soil rich in leaf mould. It tolerates heavy clay soils as long as water does not stagnate during winter.

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Polystichum: planting, cultivation and care
Family sheet
by Alexandra 12 min.
Polystichum: planting, cultivation and care
Read article

Polystichum polyblepharum - Japanese Lace Fern in pictures

Polystichum polyblepharum - Japanese Lace Fern (Foliage) Foliage
Polystichum polyblepharum - Japanese Lace Fern (Plant habit) Plant habit

Foliage

Foliage persistence Evergreen
Foliage colour medium green

Plant habit

Height at maturity 60 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Polystichum

Species

polyblepharum

Family

Aspleniaceae

Other common names

Japanese Lace Fern

Origin

East Asia

Product reference688732

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Planting and care

Plant in a shady or semi-shady location. Polystichum tolerates deep shade. Plant in rich, moist but well-drained soil. It is sensitive to excessive winter moisture. Lightly cover the collar with soil. At the end of winter, prune all old fronds flush with the stump.

Planting period

Recommended planting time February to April, September to October

Intended location

Suitable for Woodland edge, Undergrowth
Type of use Border, Slope
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Partial shade, Shade
Soil pH Acidic, Neutral, Calcareous
Soil type Clayey (heavy), Silty-loamy (rich and light)
Soil moisture Moist soil, humus-bearing and lightweight

Care

Pruning instructions Regenerate old fronds by cutting them back to the ground at the end of winter. Wait until the end of heavy frosts in cold regions (the old fronds protect the heart of the fern).
Pruning Pruning recommended once a year
Pruning time March to April
Overwinter Can be left in the ground
4,5/5

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