Photo by Melody

PlantFiles: Calla Lily, Arum Lily
Zantedeschia aethiopica 'White Giant'

Family: Araceae (a-RAY-see-ee) (Info)
Genus: Zantedeschia (zan-te-DES-kee-uh) (Info)
Species: aethiopica (ee-thee-OH-pik-uh) (Info)
Cultivar: White Giant

15 members have or want this plant for trade.


24-36 in. (60-90 cm)
6-8 ft. (1.8-2.4 m)

12-15 in. (30-38 cm)

USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Sun to Partial Shade

All parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Late Winter/Early Spring
Late Spring/Early Summer
Late Fall/Early Winter
Blooms repeatedly


Other details:
Flowers are fragrant
This plant is suitable for growing indoors
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Flowers are good for cutting
Provides winter interest
Suitable for growing in containers

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
Unknown - Tell us

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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive trackinsand On Jan 1, 2009, trackinsand from mid central, FL (Zone 9a) wrote:

have had this plant almost a year now. first in a pot in partial sun (slow but steady growth), then planted in the garden in full sun (nearly burned to death) and now back in a pot in filtered sun. suddenly the growth this fall has been crazy good and i finally have my first flower. i water no more than once a week and less now in winter. i do mist under the leaves often for spidermite prevention. don't know where it will end up this summer as it is bound to outgrow the pot at the present rate it's going. all in all, a fascinating plant. the leaves are thick and leathery, yet soft. i love touching it.

Positive lakesidecallas On Apr 8, 2007, lakesidecallas from Dandridge, TN (Zone 6a) wrote:

I've grown this in the ground, zone 5. It gets very big. In my experience it didn't get any more water than the rest of the garden.
Difficult to transplant, probably doesn't like being moved.

Positive raydio On Oct 13, 2006, raydio from Bessemer City, NC (Zone 7b) wrote:

This is a wonderful Zantedeschia aethiopica variant. In a climate where it doesn't freeze back, bloom heights of over 80 inches have been reported.

I grew mine in a water-filled trough and it flourished.

The leaves are leathery and of very heavy substance.


This plant has been said to grow in the following regions:

El Cerrito, California
Atlanta, Georgia
Bessemer City, North Carolina
Cary, North Carolina
Norristown, Pennsylvania
Pageland, South Carolina
Richmond, Texas
Olympia, Washington
Racine, Wisconsin

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