Adiantum aleuticum 'Subpumilum'

RHS Plant Profile

Aleutian maidenhair 'Subpumilum'

Synonyms

Adiantum pedatum var. minus, Adiantum pedatum var. subpumilum, Adiantum pedatum var. subpumilum f. minimum, Adiantum aleuticum f. minimum, Adiantum aleuticum var. subpumilum, Adiantum pedatum subsp. subpumilum, Adiantum pedatum var. subpumilum aleuticum

Ferns

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A compact deciduous fern to 10cm tall, with glossy black stalks bearing pedately divided fronds composed of fresh green, close-packed oblong segments

Position

Full shade, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: Up to 10 cm

Growing Conditions

Chalk Clay Loam Sand

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

Position

Full shade Partial shade

Aspect: South–facing or North–facing or West–facing or East–facing
Exposure: Exposed or 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: Pteridaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Adiantum can be deciduous or evergreen ferns with shiny black stalks bearing simple or more usually pinnately divided fronds, the segments fan-shaped, oblong or rounded, carrying spores under reflexed marginal flaps
Name Status: Accepted

How to Grow

Cultivation

Outdoors grow in moderately fertile soil. Under glass grow in a mix of 1 part each of loam, medium grade bark, charcoal and lime chippings; 2 parts sharp sand; 3 parts leaf mould. Provide bright filtered light in medium to high humidity with good ventilation. When in growth apply a half strength balanced liquid fertiliser monthly. Remove damaged fronds in spring

Propagation

Propagate from spores

Suggested planting locations and garden types

Cottage and informal garden
Patio and container plants
Rock garden

Pruning

No pruning required

Pests

May be susceptible to scale insects under glass

Diseases

Generally disease-free