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FernsConservatory Greenhouse

Doodia media

common rasp-fern

An evergreen fern with sword-shaped fronds bearing dark green, leathery segments along a brown midrib

Synonyms
Blechnum medium
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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Loam
Moisture
Moist but well–drained
pH
Acid
Colour & scent
StemFlowerFoliageFruit
Spring Bronze Green
Summer Bronze Green
Autumn Bronze Green
Winter Bronze Green
Position
  • Partial shade
Aspect

North–facing or East–facing or West–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Blechnaceae
Native to the UK
No
Foliage
Evergreen
Habit
Tufted
Name status

Correct

Plant range
Australasia, Polynesia

How to grow

Cultivation

Under glass grow in an open, humus-rich compost such as one part each of loam, medium-grade bark and charcoal, two parts sharp sand and three parts leaf mould, in bright, filtered light. Outdoors grow in moist, acid soil in sheltered, partial shade and protect from frost

Propagation

Propagate from spores, or by division in late spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Mediterranean climate plants
  • Patio and container plants
Pruning

Remove dead or damaged fronds as required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.