Calla Lily (Zantedeschia aethiopica)

Calla Lily

Zantedeschia aethiopica

Its spathe curves like a flawless ivory cup, a timeless cut flower favorite. Herbaceous perennial flowering plant; common name: arum lily.

Partial sun
2–3/week
Moderate
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Plant Needs

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Sunlight Bright indirect sunlight; tolerate partial shade, but avoid harsh midday summer sun that can scorch leaves
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Watering Keep soil consistently moist but not waterlogged; avoid letting the root ball sit in standing water to prevent rot
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Temperature Thrives in 15–22°C; protect from frost below 10°C, as cold temperatures can damage foliage and roots
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Characteristics

  • Leaf: Large, glossy arrow-shaped leaves with long, sturdy petioles; deep emerald green
  • Flower: Showy, funnel-shaped white spathe enclosing a bright yellow spadix; faintly fragrant in select cultivars
  • Stem: Thick, fleshy upright stems that support both foliage and inflorescences
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Care Guide

Watering

Maintain even soil moisture; mist foliage occasionally to boost ambient humidity

Fertilization

Diluted balanced liquid feed every 2 weeks. Use a low-nitrogen fertilizer to prioritize bloom production over foliage growth

Banana peel compost tea:Fully compost banana peels first, dilute the tea 1:20 with water for root drenching; avoid raw peels to prevent pest infestations and odor
Pruning
  • Remove spent spathes at the base to redirect energy toward new growth and potential reblooming
  • Trim yellowing or damaged leaves at the petiole base to maintain plant appearance and reduce disease risk
  • Divide overcrowded clumps every 2–3 years in early spring to promote healthy growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion leads to drooling, vomiting, oral pain, and potential difficulty breathing from pharyngeal swelling

Humans: Contains calcium oxalate crystals; ingestion causes oral irritation, swelling of lips/tongue, and temporary difficulty swallowing

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Garden Uses & Culture

Culture: Symbolizes purity, rebirth, and elegant simplicity in Western floral design; often used in wedding bouquets

Usage: Popular cut flower for arrangements; ornamental garden plant for borders or water features