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Calla Lily

Zantedeschia aethiopica

Identified By Marcs

The calla lily is a striking and elegant perennial plant native to southern Africa, renowned for its large, funnel-shaped spathes that surround a prominent central spadix. While commonly referred to as a lily, it actually belongs to the Araceae family, which also includes anthuriums and philodendrons. Featuring glossy, arrow-shaped dark green leaves, calla lilies make stunning additions to both garden beds and indoor container arrangements. They thrive in damp, boggy conditions and are frequently planted near ponds or water features. Despite their delicate appearance, they are robust growers when provided with adequate moisture, warmth, and bright indirect sunlight during their growing season.

Also known as: Arum Lily Trumpet Lily Florist's Calla

Toxicity & Safety

Is Calla Lily toxic to pets?

Yes, toxic to pets.

Calla lilies are toxic to cats, dogs, and other domestic pets due to the presence of insoluble calcium oxalate crystals. When any part of the plant is chewed or ingested, these microscopic needle-like crystals are released, causing intense irritation, burning, and swelling of the mouth, tongue, and lips. Affected pets may drool excessively, vomit, and experience severe difficulty swallowing or refusal to eat. In rare cases, severe swelling can obstruct airways, requiring immediate veterinary attention and supportive care to manage symptoms and prevent dehydration.

Is Calla Lily toxic to humans?

Yes, toxic to humans.

Ingesting any part of the calla lily plant is toxic to humans because it contains calcium oxalate crystals. These sharp crystals pierce soft tissues upon chewing, resulting in immediate burning sensations, severe irritation, and swelling of the lips, mouth, tongue, and throat. Swallowing plant matter can cause gastrointestinal distress, nausea, vomiting, and diarrhea. Direct contact with the sap may also cause skin irritation or contact dermatitis in sensitive individuals. It is crucial to keep this plant out of reach of young children and to wear gloves when handling or pruning it.

Is Calla Lily safe during pregnancy?

Caution advised during pregnancy.

Due to the toxic compounds present in calla lilies, specifically insoluble calcium oxalate crystals, consumption or internal use during pregnancy is strictly discouraged and considered harmful. Accidental ingestion by a pregnant individual can lead to severe gastrointestinal upset, systemic inflammation, and intense pain in the oral cavity. Although topical contact rarely causes systemic toxicity, the potential for severe mucous membrane irritation and subsequent stress to the body means pregnant individuals should exercise extreme caution and avoid handling broken plant tissues without protective gear.

Growth & Dimensions

Height 45 - 90 cm
Width 30 - 60 cm
Growth Rate Moderate
Care Level Easy
Lifespan Perennial

Ideal Environment

Temperature 15°C - 29°C
Sunlight Hours 6 - 8 hrs/day
Sun Exposure Partial shade
Soil pH 6 - 7.5
Watering Interval 3 - 7 days
Humidity 50.00% - 80.00%
USDA Zone 8 - 11

Tropical and Subtropical Regions

Climate: Warm climates with high humidity and consistent moisture availability.

Soils: Loam Clay Peat
Annual Rainfall: 1000 - 2500 mm

Native Regions

South Africa (ZA – Africa)
Lesotho
Eswatini

How to Care for Calla Lily

How should I handle watering requirements?

Keep the soil consistently moist. Calla lilies love water and should never be allowed to dry out completely. If grown outdoors, keep them near ponds or damp garden spots.

How should I handle sunlight exposure?

Provide bright, indirect sunlight indoors or partial shade outdoors, especially protecting them from harsh afternoon sun in warmer climates.

How should I handle soil and feeding?

Use a rich, organic, well-draining potting mix. Feed with a balanced, water-soluble fertilizer every two to three weeks during the active growing season.

How to Propagate Calla Lily

How to propagate Calla Lily by division?

Carefully dig up the rhizomes during the dormant period, separate the offsets from the main tuber, and replant them in fresh, moist soil.

Common Diseases & Pests of Calla Lily

What is Soft Rot and how is it treated?

Bacterial
Symptoms:

Water-soaked lesions on stems and rhizomes that quickly turn mushy and emit a foul odor.

Treatment:

Remove and destroy infected plant parts. Improve drainage and avoid overwatering.

Prevention:

Use clean tools, well-draining soil, and avoid damaging rhizomes during planting.

Properties & Benefits of Calla Lily

Bears Fruit

Uses & Health Benefits

What are the benefits of ornamental appeal in Calla Lily?

Enhances indoor aesthetics and contributes to general interior wellness through biophilic connection.

Precautions: Toxic if ingested; keep away from children and pets.

Key Nutrients / Compounds

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