What To Know
- Use a shovel to gently loosen the soil around the base and lift the plant.
- Store the rhizomes in a location that maintains a temperature between 45-55°F (7-13°C).
- When the danger of frost has passed, replant the rhizomes in well-drained soil in a sunny location.
As the winter season approaches, gardeners face the challenge of preserving their beloved canna plants. These tropical beauties are not cold-hardy and require special care during the dormant months. This comprehensive guide will provide you with step-by-step instructions on how to store canna plants over winter, ensuring their survival and vibrant return in the spring.
Digging and Cleaning the Rhizomes
1. Digging: Carefully dig up the canna plants before the first frost. Use a shovel to gently loosen the soil around the base and lift the plant.
2. Cleaning: Remove as much soil from the rhizomes (underground stems) as possible. Use a soft brush or your hands to gently remove any remaining dirt.
Drying and Curing the Rhizomes
1. Drying: Allow the rhizomes to air-dry in a warm, well-ventilated area for several days. This will help to remove excess moisture and prevent rot.
2. Curing: Place the rhizomes in a box filled with slightly moist peat moss or vermiculite. Store the box in a cool, dark place with good air circulation. This process will help to cure the rhizomes and promote dormancy.
Storing the Rhizomes
1. Temperature: Store the rhizomes in a location that maintains a temperature between 45-55°F (7-13°C). Avoid exposing them to temperatures below freezing.
2. Humidity: Keep the rhizomes in a moderately humid environment. Too much moisture can lead to rot, while too little can cause dehydration.
3. Light: Rhizomes require minimal light during storage. Store them in a dark or dimly lit area.
Monitoring the Rhizomes
1. Inspect Regularly: Check the rhizomes every few weeks for signs of rot or dehydration. Remove any affected rhizomes immediately.
2. Water Sparingly: Water the rhizomes only when they feel slightly dry to the touch. Overwatering can lead to rot.
3. Replant in Spring: When the danger of frost has passed, replant the rhizomes in well-drained soil in a sunny location.
Preparing for Spring
1. Divide the Rhizomes: Before replanting, divide the rhizomes into smaller sections. Each section should have at least one eye (bud).
2. Soak the Rhizomes: Soak the rhizomes in warm water for several hours before planting to encourage root growth.
3. Plant Shallowly: Plant the rhizomes shallowly, with the eyes facing upwards. Cover them with 1-2 inches of soil.
The Bottom Line: Preserving Your Canna Legacy
By following these steps, you can successfully store your canna plants over winter and enjoy their vibrant blooms again in the spring. With proper care, these tropical treasures will grace your garden for many seasons to come.
What You Need to Know
Q: How long can I store canna rhizomes?
A: Canna rhizomes can be stored for up to 6 months in ideal conditions.
Q: Can I store canna rhizomes in the refrigerator?
A: No, do not store canna rhizomes in the refrigerator. The cold temperatures can damage them.
Q: What should I do if my canna rhizomes start to rot?
A: Remove any affected rhizomes immediately and discard them. Treat the remaining rhizomes with a fungicide to prevent further rot.
Q: Can I store canna plants in the ground over winter?
A: In USDA hardiness zones 8 and above, you may be able to overwinter canna plants in the ground. However, it is recommended to dig them up and store them indoors in colder climates.
Q: When should I replant my canna rhizomes?
A: Replant canna rhizomes in the spring after the danger of frost has passed.
