Giant White Calla Lily

Zantedeschia aethiopica ‘White Giant’

Overview

Uses: Rhizomatous Herbaceous Perennial

Benefits: Extremely large, beautiful white flowers great for use in freshly cut floral displays! Very fast growing and versatile! Attracts pollinators! 

Zones: 8 - 12 (may be grown in zones 4 - 12 as an annual or by digging out and overwintering the bulb indoors)

Sun: Partial Sun to Full Shade

Life Cycle: Perennial 

Mature Height: 24" - 36"

Mature Width: 12" - 24"

Bloom Season: Summer

Summary

Massive growth habit, gorgeous white flowers, and speckled leaves! 

Grows fast, especially with hot and humid conditions and constantly damp soil! 

Giant Calla Lily will live as a perennial evergreen in warmer zones (11-12) and die back like a deciduous perennial over winter in cooler hardiness zones (8-10). It may also temporarily lose its leaves after exposure to frost and in times of drought. 

The huge, white flowers are a favorite of the floral arrangement industry! Please be aware that the flowers may require up to two years of growth to emerge. 

Divide your Giant Calla Lily's bulb every 4 to 5 years, or when propagation is desired. Use caution and a clean knife, and make sure each division has at least one stem. 

Care

Calla Lily Care

Zantedeschia aethiopica is considered moderately easy to care for.

Although it often does not require fertilizer unless soil conditions are quite poor, fertilizations will accelerate growth and keep your plant well fed. We suggest using our slow release fertilizer, or something similar.

Giant Calla Lily may be grown in full sun, although shaded areas are often much better. Prolonged exposure to strong afternoon sun may injure this plant. If growing in full sun, ensure that soil is kept moist and cool through the use of irrigation and mulch (or other suitable ground covers). 

Water regularly after planting until established, or in periods of drought. Its ideal soil is moist, rich, and well draining. It's known to thrive in both acidic and alkaline soil.

If growing in zones 8-10, it's best to cut back the leaves and flower stalks of this plant in the winter, although not required.

If growing in zone 7, you may be safe leaving your Giant Calla Lily's bulb in the ground over winter, assuming it's protected with a thick layer of mulch or straw. 

If growing in zones 6 or cooler, it's suggested to either grow your Giant Calla Lily in a container that is overwintered inside, or to dig up the bulb in fall and overwinter it inside. Replant outside in the spring after the chance of frost has passed. 

Exposure to frost will destroy the leaves of Giant Calla Lily. 

After a few years, we suggest propagating your Giant Calla Lily through division of the bulb. This is best done in spring, and is accomplished by simply cutting the bulb of the plant and into sections, and replanting those sections. Ensure each section has at least one living plant stalk. Failure to divide and transplant every few years may result in situations of poor growth. 

Size

Size of Giant White Calla Lily for Sale Online

The Zantedeschia aethiopica that we sell online will ship in a greenhouse grade grow pot. Each plant will be appropriately sized for its pot. Please contact us with any specific questions.

Size of Giant White Calla Lily When Fully Grown

Zantedeschia aethiopica typically grows to a height of 24" - 36" and width of 12" - 24". 

Additional Information

Common Names of Zantedeschia aethiopica

• African Lily

• Altar Lily

• Arum Lily

• Calla Lily

• Egyptian Lily

• Lily Of The Nile

• Pig Lily

• Trumpet Lily

• White Arum Lily

Toxicity and Risks of Giant Calla Lily

Zantedeschia aethiopica is considered toxic to both people and pets. 

This toxicity is due to the presence of calcium oxalate crystals in the form of raphides. All parts of the plant are toxic. Skin contact typically causes local irritation and contact dermatitis. Consumption typically results in a burning sensation in the mouth and occasionally vomiting and diarrhea.