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Dryopteris dilatata AGM

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© RHS

Characteristics

Plant type

Fern

Habit

Bushy

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Foliage

Dark Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

1-1.5 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

5-10 years


Preferred common name

broad buckler fern

Family

Dryopteridaceae


Dryopteris can be deciduous, semi-evergreen or evergreen ferns, with stout, erect or decumbent rhizomes and shuttlecock-like rosettes of lance-shaped to ovate, pinnately divided fronds

D. dilatata is a robust semi-evergreen perennial forming a rosette of erect or arching, broadly triangular-ovate, dark green, tripinnate fronds, the segments strongly toothed

How to grow

Sunlight

  • Part shade
  • Full shade

Aspect

  • South-facing, North-facing, West-facing or East-facing
  • Sheltered

Cultivation

Easy to grow in most cool, moist, lightly shaded sites and will grow in full sun if given plenty of moisture. Tolerant of dry shade but water regularly in their first season and mulch well

Soil

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

Propagation

Propagate by sowing spores as soon as ripe or by division in spring

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Underplanting of Roses and Shrubs


How to care

Pruning

Dead or damaged fronds may be removed as necessary

Pests

Generally pest free outdoors

Diseases

Generally disease free outdoors