Asparagus densiflorus

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emerald fern

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Houseplants

An evergreen houseplant grown for its bright green, densely feathery fronds which drape gracefully downwards with age. Rarely, insignificant pale flowers are produced which, if pollinated, may become red berries

Position

Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Partial shade
Aspect
East–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)
H1C

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Asparagaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Potentially harmful
Skin allergenfruits are harmful if eaten. Wear gloves and other protective equipment when handling
Genus
Asparagus can be evergreen or deciduous perennials or subshrubs, sometimes climbing, with tuberous rootstock. Stems bear both inconspicuous scale-like leaves and larger, leaf-like phylloclades, with small white or pinkish flowers followed by red berries
Name Status
Correct

How to Grow

Cultivation

Grow in a frost-free room in any soil, in good but not direct, sunlight. Can go outside in summer when night time temperatures stay above 5C

Propagation

Propagate by seed or division

Suggested planting locations and garden types

  • Houseplants
  • Cut flowers
  • Conservatory and greenhouse

Pruning

No pruning required

Pests

May be susceptible to asparagus beetle, slugs and snails

Diseases

Generally disease-free