Calla lilies are a captivating addition to any garden or indoor space. Their elegant, trumpet - shaped flowers and lush green foliage make them a favorite among flower enthusiasts. In this article, we will delve into everything you need to know about calla lily care, whether you're growing them in the garden or as a houseplant.
1. Understanding Calla Lilies
Calla lilies belong to the genus Zantedeschia. They are perennials, which means they come back year after year under the right conditions. There are several species and hybrids available, each with its own unique characteristics in terms of flower color, size, and growth habit. The most common colors include white, yellow, pink, and purple.
2. Growing Calla Lilies in the Garden
Site Selection
Calla lilies thrive in full sun to partial shade. When choosing a location in your garden, aim for an area that gets at least 6 hours of sunlight per day. However, in hot climates, some afternoon shade can prevent the flowers from fading too quickly. The soil should be well - drained, rich in organic matter, and slightly acidic to neutral (pH 6.0 - 7.0). You can improve the soil by adding compost or well - rotted manure before planting.
Planting
Plant calla lily rhizomes in the spring after the last frost has passed. Dig a hole about 4 - 6 inches deep and place the rhizome with the growing points facing up. Space the rhizomes about 12 - 18 inches apart. Cover the rhizomes with soil and water thoroughly. As they grow, keep the soil consistently moist but not waterlogged.
Fertilization
Calla lilies are heavy feeders. Apply a balanced, slow - release fertilizer at the time of planting. You can also supplement with a liquid fertilizer every 2 - 3 weeks during the growing season. This will promote healthy foliage and abundant flower production.
Maintenance
Remove any dead or yellowing leaves regularly to keep the plant looking tidy and to prevent the spread of diseases. After the flowers have faded, you can cut the flower stalks back to the base. In the fall, before the first frost, dig up the rhizomes if you live in an area with cold winters. Store the rhizomes in a cool, dry place over the winter and replant them in the spring.
3. Growing Calla Lilies as Houseplants
Pot Selection
Choose a pot that is at least 8 - 10 inches in diameter with drainage holes. A larger pot will give the calla lily room to grow and develop a healthy root system. Use a high - quality potting mix that is well - drained and rich in organic matter.
Light Requirements
Place your potted calla lily in a bright location, but avoid direct sunlight, especially during the hottest part of the day. A north - or east - facing window is usually ideal. If the plant doesn't get enough light, it may not flower.
Watering
Water the calla lily when the top inch of the soil feels dry to the touch. Overwatering can lead to root rot, so it's important to let the soil dry out slightly between waterings. Use room - temperature water to avoid shocking the plant.
Temperature and Humidity
Calla lilies prefer temperatures between 60 - 75°F (15 - 24°C). They also appreciate a bit of humidity. You can increase humidity by placing the pot on a tray filled with pebbles and water or by using a humidifier.
Pruning
Similar to garden - grown calla lilies, remove any dead or yellowing leaves as soon as you notice them. After the flowers have finished blooming, cut the flower stalks back to the base to encourage new growth.
4. Common Pests and Diseases
Pests
Calla lilies can be susceptible to pests such as aphids, spider mites, and thrips. You can control these pests by using insecticidal soap or neem oil. Regularly inspect the plant for signs of infestation, such as distorted leaves or small insects on the foliage.
Diseases
Root rot is a common problem, especially if the soil is too wet. To prevent root rot, make sure the soil is well - drained and don't overwater. Fungal diseases can also occur, especially in humid conditions. Good air circulation around the plant can help prevent fungal infections.
5. Propagation
Calla lilies can be propagated by dividing the rhizomes. In the spring or fall, carefully dig up the rhizome and separate the smaller offshoots from the main rhizome. Make sure each offshoot has some roots attached. Plant the divided rhizomes in a suitable location, following the same planting guidelines as above.
In conclusion, calla lilies are beautiful and rewarding plants to grow. By following these care tips, you can enjoy their stunning flowers in your garden or as a houseplant for years to come.