Asplenium viride

RHS Plant Profile

green spleenwort

Synonyms

Asplenium trichomanes-ramosum

Ferns

An evergreen, clump-forming fern with 10-25cm long and 2-3cm wide bright yellow-green to deep green, linear, tapered fronds divided into oblong leaflets with smooth to gently toothed edges. The fronds have slightly wavy margins and a feathery, maidenhair-like appearance. The leaflets are arranged alternately along the fronds. Its green or reddish stipe (stalk) sets it apart from other spleenworts. Brown spore clusters (sori) line the underside along the midrib from late summer to early autumn

Position

Full shade, Partial shade

Soil Types

Loam, Sand

Size

Time to Maturity: 2–5 years

Growing Conditions

Loam Sand

Moisture: Moist but well–drained
pH: Alkaline or Neutral

Position

Full shade Partial shade

Aspect: East–facing or North–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

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

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

Wildlife gardens

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free