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Polystichum munitum

western sword fern

A robust, evergreen fern forming a large clump of erect, narrowly lance-shaped, dark green, pinnate fronds, the narrow pinnae finely spine-toothed

Other common names
giant holly fern
sword fern
Synonyms
Aspidium munitum

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
1–1.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Green
Winter Green
Position
  • Full shade
  • Partial shade
Aspect

North–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Dryopteridaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus

Polystichum are mostly evergreen or semi-evergreen ferns, with short stout rhizomes and pinnately divided fronds in neat shuttlecock-like rosettes

Name status

Correct

Plant range
W North America

How to grow

Cultivation

Easy to grow in most cool, fertile, moist, humus-rich, shaded soils. Protect crowns from excessive winter wet. See how to grow ferns for further advice

Propagation

Propagate by sowing spores as soon as ripe or propagate by division of rhizomes in spring or by bulbils in autumn

Suggested planting locations and garden types
  • Cottage and informal garden
  • Low Maintenance
  • Flower borders and beds
  • Underplanting of roses and shrubs
Pruning

Dead or damaged fronds may be removed as necessary

Pests

Generally pest-free outdoors

Diseases

Generally disease-free

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