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Zantedeschia aethiopica 'Crowborough' AGM

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© RHS 2001

Characteristics

Plant type

Aquatic or Herbaceous Perennial

Habit

Clump-forming

Toxicity

All parts may cause severe discomfort if ingested. The sap may irritate skin and eyes

Resilience

Hardiness

H4 (hardy - average winter)

Colour

Flower

White and Yellow in Spring and Summer

Foliage

Dark Green in Autumn, Spring and Summer

Fruit

Orange in Autumn

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

5-10 years


Preferred common name

arum lily 'Crowborough'

Family

Araceae


Zantedeschia can be deciduous or semi-evergreen, tuberous perennials with lance-shaped or arrow-shaped leaves and tiny yellow flowers forming a dense spike-like spadix, with a showy, hood-like spathe, sometimes followed by orange berry-like fruits

'Crowborough' is a deciduous perennial (evergreen in mild areas) to 1m in height, with rich green, arrow-shaped leaves and funnel-shaped white spathes to 15cm in length, with a prominent yellow spadix

Synonym(s)

  • Zantedeschia 'Crowborough'

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Exposed or Sheltered

Cultivation

Grow in planting baskets in heavy loam soil in water up to 30cm deep, in full sun. Protect overwintering plants by placing baskets in a frost-free environment

Soil

  • Poorly-drained
  • Neutral, Acid or Alkaline
  • Clay or Loam

Propagation

Propagate by division in spring

Suggested planting locations and garden types

Cottage/Informal Garden, Flower borders and beds or Wall-side Borders


How to care

Pruning

No pruning required

Pests

Aphids may be a problem

Diseases

Generally disease free