Calla Lily 'White Giant' (Zantedeschia aethiopica 'White Giant')

Calla lily 'White Giant' (Zantedeschia aethiopica 'White Giant') is a robust, large-flowered selection of the classic white calla lily. A member of the Araceae family, it's prized for its huge, pure white spathes and vigorous growth.

Description

Rhizomatous perennial 3–4 feet tall (larger than species). Leaves are large, arrow-shaped, dark green. Spathe is pure white, 8–10 inches long, with a yellow spadix. Blooms late spring to summer. Evergreen in mild climates; dormant in cold.

Growing Conditions

• Zones: 8–10 (rhizomes lifted in colder zones).
• Light: Full sun to part shade.
• Soil: Rich, moist, well-drained. Tolerates boggy conditions.
• Water: Consistent moisture; thrives in wet soil.
• Planting: Plant rhizomes 4–6 inches deep, 18 inches apart in spring.

Care & Maintenance

Feed monthly. Lift rhizomes in fall in zones 7 and below; store cool, moist. Divide every 2–3 years. Remove spent spathes.

Uses

Cut flowers (long-lasting), water garden margins, tropical beds, large containers. Majestic in mass.

Potential Issues

Rhizome rot in cold, wet soil. Aphids, spider mites. Can be aggressive in ideal wetlands.

A grand, architectural calla that commands attention with foot-long white trumpets.