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For gardeners who love their canna lilies, proper storage during the off-season is essential to ensure healthy blooms year after year. Knowing when and how to dig up canna lilies can make all the difference in preserving their vibrant foliage and striking flowers.
When to Dig Up Canna Lilies
The best time to dig up canna lilies is after the first frost has killed the foliage. This typically occurs in late fall, depending on your climate zone. In colder regions, it’s advisable to wait until the leaves have turned brown and begun to die back naturally. In milder climates, you may need to dig them up earlier to prevent rot or damage.
How to Dig Up Canna Lilies
Follow these steps to safely remove your canna lilies from the ground:
- Use a garden fork or spade to gently loosen the soil around the plant, being careful not to damage the rhizomes.
- Lift the entire clump out of the ground, supporting it with your hands.
- Brush off excess soil from the rhizomes gently.
- Inspect the rhizomes for any signs of rot or disease, discarding any damaged portions.
Preparing Canna Lilies for Storage
Proper preparation helps ensure your canna lilies survive the winter and thrive again in spring:
- Cut back the foliage to about 2 inches above the rhizomes.
- Allow the rhizomes to dry in a warm, well-ventilated area for a few days.
- Once dry, dust them with a fungicide or cinnamon to prevent mold and rot.
Storage Methods for Canna Lilies
Store your rhizomes in a cool, dark, and dry location. Common options include:
- Sand-filled boxes or buckets kept in a basement or cellar.
- Paper bags with peat moss or vermiculite to absorb moisture.
- Plastic containers with ventilation holes, ensuring they are not sealed airtight.
Additional Tips for Successful Storage
To maximize the lifespan of your canna lily rhizomes:
- Check stored rhizomes periodically for signs of mold or dehydration.
- Maintain storage temperatures around 45-50°F (7-10°C).
- Label each container with the variety and date of storage for easy identification.
Resuming Growth in Spring
When the danger of frost has passed, you can replant your canna lilies outdoors. Soak the rhizomes in water for a few hours before planting to encourage sprouting. Plant them about 4-6 inches deep in well-draining soil, and water thoroughly. With proper care, your canna lilies will flourish again, providing stunning color and lush foliage.