Zantedeschia aethiopica 'Crowborough'
arum lily 'Crowborough'
A deciduous to semi-evergreen perennial (evergreen in mild areas) to 1m in height, with rich green, arrow-shaped leaves and funnel-shaped white spathes to 15-20cm in length, with a prominent yellow spadices
Size
Ultimate height
0.5–1 metresTime to ultimate height
5–10 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | White Yellow | Green | ||
|---|---|---|---|---|
| Summer | White Yellow | Green | ||
| Autumn | Green | Orange | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or South–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Araceae
- Native to GB / Ireland
- 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
Grow outdoors in full sun or part shade in moisture-retentive soil; in containers planted in peat-free John Innes No2 potting compost or can also be grown as a marginal plant in water up to 30cm (1ft) deep. Use aquatic compost and a 30cm (1ft) deep planting basket. See Zantedeschia cultivation
Propagation
Propagate by division in spring
Suggested planting locations and garden types
- Sub-tropical
- Cottage and informal garden
- Patio and container plants
- Mediterranean climate plants
- Flower borders and beds
Pruning
Tidy any foliage blackened by frosts
Pests
May be susceptible to aphids or thrips; glasshouse red spider mite or glasshouse whitefly
Diseases
May be susceptible to fungal and bacterial rots and a virus
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.