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Polystichum setiferum (Divisilobum Group) 'Divisilobum Iveryanum' AGM

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© RHS

Characteristics

Plant type

Fern

Habit

Bushy

Resilience

Hardiness

H7 (very hardy)

Colour

Foliage

Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

5-10 years


Preferred common name

soft shield fern 'Divisilobum Iveryanum'

Family

Dryopteridaceae


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

'Divisilobum Iveryanum' is a robust winter-green fern with spreading, lance-shaped dark green fronds which are tripinnate, with crested apex and pinnae

How to grow

Sunlight

  • Part shade
  • Full shade

Aspect

  • North-facing or East-facing
  • Exposed or Sheltered

Cultivation

Grow in most cool, fertile, moist, humus-rich, shaded soils. Protect crowns from excessive winter wet

Soil

  • Moist but well-drained
  • Acid, Neutral or Alkaline
  • Sand, Clay or Loam

Propagation

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

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden, Ground Cover or Low Maintenance


How to care

Pruning

Dead or damaged fronds may be removed as necessary

Pests

Generally pest free outdoors

Diseases

Generally disease free