Zantedeschia 'White Giant'
arum lily 'White Giant'
A semi-evergreen, clump-forming perennial to 2m high with large, glossy, slightly ruffled, white-speckled, dark green leaves. Large, funnel-shaped white spathes are borne on upright stems above the foliage from summer into early autumn
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Size
Ultimate height
1.5–2.5 metresTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green White | |||
|---|---|---|---|---|
| Summer | White | Green White | ||
| Autumn | White | Green White | ||
| Winter | Green White |
Position
- Full sun
Aspect
West–facing or South–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Araceae
- Native to GB / Ireland
- No
- Foliage
- Semi evergreen
- Habit
- Bushy
- 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 in moist soil in full sun. If cultivating as a marginal aquatic plant, 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. See Zantedeschia cultivation LJD
Propagation
Propagate by division
Suggested planting locations and garden types
- Cottage and informal garden
- Flower borders and beds
- Garden edging
Pruning
No pruning required
Pests
May be susceptible to aphids
Diseases
Generally disease-free
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.