Arum italicum subsp. italicum 'White Winter'

RHS Plant Profile
Italian arum 'White Winter'

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Synonyms

Arum pictum 'Taff's Form'

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Herbaceous Perennial
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A clump-forming, semi-evergreen perennial with striking arrow-shaped, white-marbled leaves which start to grow in late autumn when the plants come back from dormancy. A creamy-white, hooded spathe appears in late spring followed by a cluster of bright orange berries by late summer

Position

Partial shade

Soil Types

Loam, Clay, Chalk, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

Partial shade
Aspect
West–facing or East–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)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Araceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Clump forming
Potentially harmful
TOXIC if eatenskin/eye irritant. Wear gloves and other protective equipment when handling TOXIC to pets - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus
Arum are tuberous perennials with simple, arrow-head shaped leaves and tiny flowers hidden, at the base of a yellow or purple, club-shaped spadix, within a showy, hood-like spathe, and followed by red berries
Name Status
Accepted

How to Grow

Cultivation

Grows best in partial shade in moisture retentive but well drained soils. Has the potential to become a nuisance if not managed well

Propagation

Propagate by division

Suggested planting locations and garden types

  • Cottage and informal garden
  • Flower borders and beds
  • Underplanting of roses and shrubs

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free