How to Store Calla Lily Bulbs for Optimal Growth

How to Store Calla Lily Bulbs?

To store calla lily bulbs, it is important to consider the temperature and conditions.

Indoor calla lilies can be overwintered as a whole plant, while garden callas should be dug up and only the tubers stored.

Indoor calla lilies need a bright location without direct sunlight and a constant temperature of 10 °C.

Garden callas should stop fertilization and watering in August, dig up tubers in October, and dry them before storing in a dark, dry place.

The bulbs should be allowed to dry for 2-3 days before storing.

Overwinter them in a box with dry sand or straw in a frost-free, dark, and dry place.

The temperature during storage should always be below 15 °C.

Non-hardy calla lilies are best cultivated in pots and should be watered sparingly during winter.

Check plants regularly for pests and signs of root rot.

In the spring, increase the temperature and watering gradually.

Garden calla lilies overwintered as tubers require minimal care.

Handle the plants with gloves as they are poisonous.

When putting out calla lilies in the spring, either plant in pots first or outdoors when no frost is expected.

Use potting mix with slow-release fertilizer and water regularly.

Provide a bright place at room temperature for growth and gradually increase watering as the plant grows.

Key Points:

  • Indoor calla lilies can be overwintered as a whole plant, while garden callas should be dug up and only the tubers stored.
  • Indoor calla lilies need a bright location without direct sunlight and a constant temperature of 10 °C.
  • Garden callas should stop fertilization and watering in August, dig up tubers in October, and dry them before storing in a dark, dry place.
  • The bulbs should be allowed to dry for 2-3 days before storing.
  • Overwinter them in a box with dry sand or straw in a frost-free, dark, and dry place. The temperature during storage should always be below 15 °C.
  • Non-hardy calla lilies are best cultivated in pots and should be watered sparingly during winter.


Did You Know?

1. Did you know that calla lily bulbs can actually be stored for up to six months without any water or soil? This makes them a convenient choice for those who want to save their bulbs for future planting.
2. Calla lilies are often associated with weddings and celebrations due to their elegant and graceful appearance. However, these stunning flowers are actually not true lilies and belong to the Araceae family.
3. Did you know that calla lilies are not only available in traditional white, but also come in a variety of vibrant colors such as pink, purple, yellow, and even black? These colorful variations can add a unique touch to any garden or floral arrangement.
4. Calla lily bulbs are indigenous to South Africa and were historically used by several indigenous tribes for medicinal purposes. The Zulu people, for example, used the bulb to treat headaches and as an antiseptic for wounds.
5. Calla lilies are not just prized for their beauty, but also for their symbolism. In many cultures, these flowers represent rebirth, triumph, and purity. It’s no wonder they are often chosen to decorate special occasions and make meaningful gifts.

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Indoor Callas In Pots: Protecting Against Cold Temperatures

Calla lilies are elegant and beautiful flowers, but they are susceptible to frostbite and damage from low temperatures.

If you have indoor calla lilies in pots, it is important to protect them from the cold. Keep in mind that these plants can become too cold below 15 °C, so bringing them indoors during colder months is crucial to prevent any damage.

For outdoor or potted Zantedeschias, additional measures need to be taken to ensure their survival when temperatures drop below 10 °C. However, there is a hardy variety called ‘Crowsborough’ that can withstand temperatures as low as -20 °C. Remember to consider the specific variety you have when determining how to protect your calla lilies from cold temperatures.

When overwintering indoor calla lilies, you can keep the whole plant intact. On the other hand, garden callas should be dug up and only the tubers stored.

In both cases, it is important to provide a bright location for indoor callas, without direct sunlight, and maintain a constant temperature of 10 °C. These conditions will help ensure the well-being of your calla lilies during the cold winter months.

  • To protect indoor calla lilies from cold temperatures:
  • Bring them indoors when the temperature drops below 15 °C.
  • Find a bright location for them without direct sunlight.
  • Maintain a constant temperature of 10 °C.

  • To protect outdoor or potted Zantedeschias from cold temperatures:

  • Check if you have the hardy variety called ‘Crowsborough’ that can withstand temperatures as low as -20 °C.
  • If not, take additional measures when temperatures drop below 10 °C.

“It is important to note the specific variety you have when determining how to protect your calla lilies from cold temperatures.”

Overwintering Calla Lilies: Storing Bulbs For Winter

When overwintering calla lilies, proper storage is crucial. For indoor calla lilies, let the bulbs dry for 2-3 days before storing. It is recommended to store them in a box filled with dry sand or straw. This helps maintain moisture levels and protects the bulbs from temperature fluctuations.

The ideal storage conditions for overwintering calla lilies should include a frost-free, dark, and dry place. The temperature should always be below 15 °C to ensure the bulbs remain dormant throughout the winter. Non-hardy calla lilies are best cultivated in pots and should be treated as indoor callas when it comes to storage.

For garden calla lilies, the process is slightly different. Stop fertilization and watering in August, and dig up the tubers in October. Allow them to dry before storing in a dark, dry place. Placing the tubers in a box with dry sand or straw will help maintain their moisture levels. This storage method ensures the tubers remain healthy and ready for planting in the spring.

Tips For Indoor Calla Lily Care During The Winter

During the winter, caring for indoor calla lilies requires attention to detail. Watering should be done sparingly, allowing the substrate to almost completely dry out before watering again. Fertilization should be avoided during this time, as the plant is in a dormant state.

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Regularly check your calla lilies for any signs of pest infestation, such as leaf aphids or spider mites. These pests can cause damage to the plant if left untreated. Prune any dead plant parts regularly to maintain the overall health and appearance of your calla lilies.

If you notice wilted leaf margins or discolored leaves, it may indicate root rot from overwatering. Adjust your watering schedule accordingly to prevent further damage. Remember to always wear gloves when handling calla lily plants, as they are poisonous.

Calla Lily Pests And Diseases: Identifying And Preventing Issues

When it comes to calla lilies, pests and diseases can pose a threat to their growth and overall health. Common pests thatcan affect calla lilies include leaf aphids and spider mites. These pests can cause damage to the leaves and flowers if not properly addressed.

To address these pests:

  • Regularly inspect your calla lilies for any signs of infestation.
  • Look for small, crawling insects or webbing on the leaves.
  • If you notice any issues, treat the affected plants with an appropriate pesticide or insecticidal soap to eliminate the pests.

In addition to pests, calla lilies can also be susceptible to diseases, particularly root rot. Overwatering can lead to this condition, causing the roots to become waterlogged and prone to fungal infections.

To prevent root rot:

  • Ensure proper drainage and avoid overwatering.
  • Regularly prune dead plant parts to prevent the spread of diseases. By removing any affected areas, you can help stop the disease from spreading to healthy parts of the plant.

Spring Planting Options For Calla Lilies: Potting Vs. Outdoor Planting

When it comes to spring planting, there are two options for putting out calla lilies: planting them in pots first or planting them directly outdoors when no frost is expected.

If you choose to plant calla lilies in pots, it is important to use potting mix enriched with a slow-release fertilizer. Plant the tubers about 10cm deep in the pot, cover them with substrate, and water regularly. It is crucial to provide a bright location at room temperature for their growth.

If you opt for planting calla lilies directly outdoors, make sure to wait until all risk of frost has passed. Choose a location with well-draining soil and full sunlight. Plant the tubers at a depth of approximately 10cm and cover them with soil. Water regularly and monitor their growth throughout the season.

Growing Calla Lilies: Proper Watering And Temperature Management

Proper watering and temperature management are essential for the successful growth of calla lilies. During the growing season, it is important to gradually increase the amount of water as the plant grows. This will provide the necessary moisture for healthy development.

Temperature is also a crucial factor in the growth of calla lilies. When overwintering callas, it is recommended to keep temperatures between 0 °C and 15 °C. Avoid temperatures above 15 °C or below 0 °C during this period.

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In spring, as the plants start to grow, gradually raise the temperature to 12-15 °C for optimal growth. This will promote healthy development and ensure vibrant blooms.

By following these watering and temperature management practices, you can guarantee the healthy growth and vibrant blooms of your calla lilies throughout their life cycle.

Frequently Asked Questions

How long do calla lily bulbs last?

The lifespan of calla lily bulbs can vary depending on various factors. Generally, calla lilies have the potential to last for many years if they are properly cared for. These plants typically go through a dormant period in the fall and re-emerge in the spring. When in bloom, calla lilies can showcase their vibrant flowers for a period of 6 to 12 weeks, adding a touch of beauty to the late spring and summer landscapes. However, it is important to note that not all calla lilies bloom simultaneously, as their blooming patterns can be influenced by geographic location and the specific variety of the calla lily.

Should I soak calla lily bulbs?

While it is crucial to provide adequate water to calla lily bulbs after planting, soaking them is not recommended. Instead, focus on thoroughly watering them, ensuring the soil remains evenly moist without becoming overly saturated. By following this watering approach, you can expect calla lilies to bloom within 60 to 90 days, influenced by factors such as the specific variety, soil temperature, and weather conditions.

1. What are the best storage conditions for calla lily bulbs to ensure their survival during periods of dormancy?

The best storage conditions for calla lily bulbs during periods of dormancy involve keeping them in a cool and dry environment. It is recommended to store the bulbs at a temperature between 45-55 degrees Fahrenheit (7-13 degrees Celsius) in a well-ventilated area. Excessive moisture can cause rot, so it is crucial to store them in a dry location, free from humidity. Additionally, it is advisable to store the bulbs in a dark place to prevent any unwanted sprouting or growth during the dormancy period.

2. Is it necessary to divide calla lily bulbs before storing them, and if so, what is the best method for dividing and storing the bulb sections?

It is not necessary to divide calla lily bulbs before storing them, but it can be done to promote their health and growth. Dividing the bulbs every 3-5 years helps prevent overcrowding and allows for new growth. To divide and store the bulb sections, start by carefully digging up the bulbs, being careful not to damage them. Gently separate the bulbs from each other, making sure they have roots attached. Clean off any excess soil and allow the bulbs to dry for a few days. Once dry, store the bulb sections in a cool, dark place with good ventilation, such as paper bags or mesh containers filled with dry peat moss, sawdust, or vermiculite.

References: 1, 2, 3, 4

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