Calla Lily Care Guide: How to Grow & Care for Zantedeschia

About Calla Lily

Calla Lilies (Zantedeschia) are elegant, sophisticated flowering plants beloved for their trumpet-shaped blooms in white, yellow, pink, purple, and deep burgundy. Native to southern Africa, they're grown both as houseplants and garden plants, and are a staple in floral arrangements and wedding bouquets. With the right care, Calla Lilies can bloom reliably year after year from their rhizomatous bulbs.

Light Requirements

Calla Lilies thrive in bright indirect light indoors. They can handle some direct morning sun but should be protected from harsh afternoon sun which can scorch the large leaves. Outdoors, they prefer partial shade in hot climates and full sun in cooler regions. Insufficient light results in leggy growth and fewer blooms.

Watering

During active growth and blooming, keep the soil consistently moist — Calla Lilies are thirstier than many houseplants and appreciate regular watering. Water when the top inch of soil feels dry. After blooming, gradually reduce watering to allow the plant to enter dormancy. During dormancy, stop watering almost entirely and store the rhizome in a cool, dry place.

Soil & Potting

Use a rich, well-draining potting mix with good moisture retention. A blend of potting soil and compost works well. Plant rhizomes 2–4 inches deep with the growing tip facing up. Use pots with drainage holes — while Calla Lilies like moisture, they should never sit in standing water.

Temperature & Humidity

Calla Lilies prefer temperatures between 60–75°F (15–24°C) during active growth. They go dormant in summer heat or winter cold. Keep away from frost — the rhizomes are not frost-hardy. Moderate humidity is appreciated; mist occasionally in dry indoor environments.

Fertilizing

Feed with a balanced liquid fertilizer every 2 weeks during active growth and blooming. Once blooming ends and the plant begins to go dormant, stop fertilizing. High-phosphorus fertilizer can encourage more prolific blooming.

The Dormancy Cycle

Calla Lilies naturally go dormant after blooming — leaves yellow and die back, which is completely normal. Reduce watering gradually, allow foliage to die back naturally, then store the rhizome in a cool, dry, dark place for 2–3 months. Replant in fresh soil in late winter or early spring to restart the growth cycle.

Common Problems

• Yellow leaves during growth: Overwatering or nutrient deficiency. Check drainage and feed regularly.
• No blooms: Insufficient light, skipping dormancy, or over-fertilizing with nitrogen. Ensure a proper dormancy period.
• Soft, rotting rhizome: Overwatering or poor drainage. Improve drainage and reduce watering.
• Aphids: Common on new growth. Treat with insecticidal soap or neem oil.

Toxicity

Calla Lilies are toxic to cats, dogs, and humans if ingested. Keep out of reach of pets and children.

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