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Conservatory GreenhouseBedding

Zantedeschia 'Picasso'PBR

arum lily 'Picasso'

A tuberous perennial, to 60cm tall, with arrow-shaped, wavy green leaves spotted white. Each flower stem has a yellow spadix surrounded by a purple-throated spathe with creamy-white rims

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Moisture
Moist but well–drained, Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green White
Summer Cream Purple White Green White
Autumn Green White
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Araceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Harmful if eaten, skin/eye irritant. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten, skin/eye irritant - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

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

Name status

Accepted

How to grow

Cultivation

Use as summer bedding, planting in a moist, humus-rich, but well-drained soil in full sun. Lift and store overwinter in trays of peat-free compost in a cool, frost-free garage or shed and plant out tubers in spring after risk of frost has passed. Alternatively, grow in containers of peat-free, loam-based John Innes No2 potting compost and overwinter in a greenhouse or conservatory. See Zantedeschia cultivation

Propagation

Propagate by division in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Patio and container plants
  • Sub-tropical
  • Flower borders and beds
Pruning

Deadhead flowers and cut down yellowing foliage at the end of the season

Pests

May be susceptible to aphids or thrips; glasshouse red spider mite or glasshouse whitefly

Diseases

May be susceptible to bacterial or fungal rots or a virus

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