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Asplenium septentrionale

forked spleenwort

A small, evergreen fern with a tufted, clump-forming habit. Its thin, wiry fronds, 5–20cm long, 2–4 mm wide, are deep green to bluish-green, leathery, and often forked at the tips, resembling grass. Slow-growing but long-lived, it thrives in rocky, dry habitats

Other common names
grass fern
Synonyms
Acrostichum septentrionale
Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Green
Winter Green
Position
  • Full shade
  • Partial shade
Aspect

East–facing or North–facing or West–facing

Exposure
Sheltered
Drought resistance
Yes
Hardiness
H5
Botanical details
Family
Aspleniaceae
Native to GB / Ireland
Yes
Foliage
Evergreen
Habit
Clump forming
Genus

Asplenium are evergreen ferns with short, usually erect rhizomes bearing a rosette of slightly leathery fronds which may be simple, pinnate to 3-pinnate

Name status

Correct

Plant range
Temp. N. Hemisphere

How to grow

Cultivation

Thrives in rocky crevices, dry stone walls, and shaded slopes, tolerating drought and harsh conditions. See hardy ferns cultivation for more information

Propagation

Propagate by division, or propagate by sowing spores as soon as ripe at 15°C

Suggested planting locations and garden types
  • Rock garden
  • Wildlife gardens
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

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