Zantedeschia elliottiana
Zantedeschia elliottiana
Zantedeschia elliottiana, commonly known as the yellow calla lily, is a striking plant with vibrant yellow flowers. Native to South Africa, it is cherished for its unique beauty and ability to thrive in various light conditions, making it a popular choice for gardens and indoor spaces.
Everything it needs
9 essentials at a glance
Watering
Zantedeschia elliottiana prefers consistently moist soil, so water when the top inch of soil feels dry.
During the growing season (spring and summer), water more frequently, approximately every 5-7 days. In fall and winter, reduce watering to every 10-14 days. Signs of over-watering include yellowing leaves and root rot, while under-watering can cause wilting and browning leaf edges.
Light
This plant thrives in partial shade to full sun, ideally receiving 4-6 hours of indirect sunlight daily.
It can tolerate some direct sunlight, especially in the morning. Avoid placing it in full shade, as this can hinder its growth and flowering.
Soil
Zantedeschia elliottiana prefers a well-draining, rich potting mix with a pH range of 6.0 to 7.0.
A mix of peat moss, perlite, and compost works well to ensure adequate drainage while retaining moisture.
Humidity
This plant enjoys high humidity levels of 50% or more.
To increase humidity, consider misting the leaves, placing a humidifier nearby, or using a pebble tray filled with water. Signs of humidity stress include browning leaf tips and edges.
Temperature
Ideal temperatures range from 65-80°F (18-27°C) during the day and not below 50°F (10°C) at night.
Zantedeschia elliottiana is hardy in zones 8-11, showing good heat tolerance but should be protected from frost.
Fertilizing
Use a balanced liquid fertilizer with an NPK ratio of 10-10-10 every 4-6 weeks during the growing season.
In fall and winter, reduce fertilization to once every 8-10 weeks. Signs of nutrient deficiency include stunted growth and yellowing leaves.
Pruning
Prune Zantedeschia elliottiana in early spring to remove any dead or damaged leaves.
Use clean, sharp scissors or pruning shears to make clean cuts. Deadheading spent flowers encourages more blooms and keeps the plant looking tidy.
Repotting
Repot every 1-2 years or when the plant becomes root-bound, indicated by roots growing out of the drainage holes.
Choose a pot that is 1-2 inches larger in diameter. Carefully remove the plant from its pot, loosen the roots, and place it in fresh potting mix.
Propagation
Propagation can be done through division or offsets.
The best time to propagate is in spring. Carefully separate the tubers, ensuring each has roots attached, and replant them in a suitable potting mix. Water lightly until they establish.
When it's unhappy
Yellow leaves
Why it happens
Often caused by over-watering or nutrient deficiency.
How to fix it
Check the soil moisture and reduce watering frequency. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Root rot
Why it happens
Excess moisture and poor drainage can lead to root rot.
How to fix it
Ensure proper drainage and allow the soil to dry out slightly between waterings. Remove affected roots and repot in fresh soil.
Browning leaf tips
Why it happens
Low humidity or underwatering can cause leaf tips to brown.
How to fix it
Increase humidity levels and ensure consistent watering to keep the soil moist.
Wilting leaves
Why it happens
Under-watering or extreme heat can cause wilting.
How to fix it
Check soil moisture and water thoroughly if dry. Provide shade during extreme heat.
Pests (aphids, spider mites)
Why it happens
Pests can infest the plant, especially in dry conditions.
How to fix it
Inspect regularly and treat infestations with insecticidal soap or neem oil.
Care through the year
Spring
In spring, increase watering frequency as the plant begins to grow actively. Fertilize every 4-6 weeks and prune any dead leaves.
Summer
During summer, ensure the plant receives adequate moisture and consider providing shade during extreme heat. Continue fertilizing every 4-6 weeks.
Fall
In fall, gradually reduce watering as the plant enters dormancy. Stop fertilizing and prepare for winter by checking for pests.
Winter
In winter, water less frequently, allowing the soil to dry out between waterings. Keep the plant in a cool location, ideally above 50°F (10°C).
Toxicity & Safety
Zantedeschia elliottiana is toxic to pets and humans if ingested. All parts of the plant contain calcium oxalate crystals, which can cause irritation of the mouth and throat, leading to symptoms such as swelling, difficulty swallowing, and gastrointestinal distress.
Good to know
How often should I water my Zantedeschia elliottiana?
Water your Zantedeschia elliottiana when the top inch of soil feels dry, typically every 5-7 days in the growing season and every 10-14 days in winter.
What light conditions are best for Zantedeschia elliottiana?
This plant thrives in partial shade to full sun, ideally receiving 4-6 hours of indirect sunlight daily for optimal growth and flowering.
Why are the leaves of my Zantedeschia elliottiana turning yellow?
Yellow leaves can indicate over-watering or nutrient deficiency. Check soil moisture and consider fertilizing if necessary.
What is the ideal humidity for Zantedeschia elliottiana?
Zantedeschia elliottiana prefers humidity levels of 50% or higher. Increase humidity through misting or using a humidifier.
When should I repot my Zantedeschia elliottiana?
Repot every 1-2 years or when roots grow out of the drainage holes, indicating the plant is root-bound.
How can I propagate Zantedeschia elliottiana?
Propagate through division in spring by separating tubers with roots attached and replanting them in fresh potting mix.
Is Zantedeschia elliottiana toxic to pets?
Yes, all parts of Zantedeschia elliottiana are toxic to pets and humans, causing irritation and gastrointestinal distress if ingested.
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