What To Know
- Spread the rhizomes out on a tray or in a well-ventilated area for several days.
- Store the dried rhizomes in a cool, dark, and well-ventilated area, such as a basement or garage.
- Place the rhizomes in a plastic bag or container with the moist material and store them in a refrigerator.
Canna plants, with their vibrant blooms and lush foliage, add a touch of tropical flair to any garden. However, as the cold weather approaches, it’s crucial to take proper steps to protect these plants from the harsh winter conditions. In this comprehensive guide, we will explore the essential steps on how to winterize canna plant, ensuring their survival and a thriving garden come spring.
Digging and Dividing Cannas
The first step in winterizing canna plants is to dig them up once the first frost has hit. Carefully lift the plants from the ground using a shovel or garden fork, being mindful not to damage the roots. Divide the plants into smaller clumps, ensuring each clump has several healthy rhizomes.
Cleaning and Pruning
After digging up the cannas, gently remove any excess soil from the rhizomes and divide them into smaller clumps. Remove any dead or damaged foliage and cut back the stems to a few inches above the rhizomes. This will help prevent rot and disease during storage.
Drying the Rhizomes
Before storing the canna rhizomes, it’s important to dry them thoroughly. Spread the rhizomes out on a tray or in a well-ventilated area for several days. Avoid placing them directly in sunlight or in areas with excessive moisture.
Choosing a Storage Method
There are two main methods for storing canna rhizomes over the winter:
1. Dry Storage: Store the dried rhizomes in a cool, dark, and well-ventilated area, such as a basement or garage. Place them in a cardboard box or paper bag with some vermiculite or sawdust to absorb any moisture.
2. Moist Storage: If your storage area is not well-ventilated, you can store the rhizomes in moist peat moss or perlite. Place the rhizomes in a plastic bag or container with the moist material and store them in a refrigerator. Check on them periodically to ensure they remain moist but not soggy.
Checking on the Rhizomes
Throughout the winter, it’s important to check on the stored canna rhizomes regularly. Remove any that show signs of rot or disease. If the rhizomes are starting to dry out, mist them lightly with water.
Replanting in Spring
When the weather warms up in spring, it’s time to replant the canna rhizomes. Choose a sunny location with well-drained soil and amend it with organic matter. Plant the rhizomes horizontally, about 4-6 inches deep and 12-18 inches apart. Water the plants deeply and fertilize them according to the package directions.
Tips for Winterizing Cannas in Cold Climates
In areas with extremely cold winters, additional steps may be necessary:
- Mulching: Cover the planted canna rhizomes with a thick layer of mulch, such as straw or shredded leaves, to protect them from freezing.
- Containers: Plant cannas in containers and move them indoors before the first frost. Keep them in a bright, cool location until spring.
- Trenching: Dig a trench deep enough to accommodate the canna rhizomes and plant them vertically. Backfill the trench with soil and mulch heavily.
Pests and Diseases to Watch For
During storage, canna rhizomes are susceptible to pests and diseases. Be on the lookout for:
- Mealybugs: Small, white insects that feed on the sap of the rhizomes.
- Aphids: Tiny, green or black insects that can spread disease.
- Rhizome rot: A fungal disease that causes the rhizomes to become soft and mushy.
Popular Questions
1. Why is it important to winterize canna plants?
Winterizing protects canna plants from frost damage, which can kill the rhizomes and prevent them from growing in spring.
2. How often should I check on stored canna rhizomes?
Check on the rhizomes every few weeks to ensure they are not rotting or drying out.
3. Can I store canna rhizomes in the refrigerator?
Yes, but only if your storage area is not well-ventilated. Keep the rhizomes in a plastic bag with moist peat moss or perlite.
4. How deep should I plant canna rhizomes in spring?
Plant the rhizomes horizontally, about 4-6 inches deep and 12-18 inches apart.
5. What are some signs of rhizome rot?
Rhizome rot causes the rhizomes to become soft and mushy. They may also develop a foul odor.
