What To Know
- When the foliage of your canna plant dies back in the fall, it’s time to prepare the bulbs for winter storage.
- Place the bulbs in a breathable container, such as a mesh bag or cardboard box.
- Keep an eye on the weather forecast and cover the plants with a blanket or tarp if temperatures are expected to drop below freezing.
As the days grow shorter and temperatures plummet, many gardeners wonder how to care for their beloved canna plants during the winter. These tropical beauties thrive in warm climates but can struggle to survive in freezing conditions. However, with proper care, it is possible to protect your canna plants and ensure their vibrant return in the spring.
Digging and Storing Canna Bulbs
When the foliage of your canna plant dies back in the fall, it’s time to prepare the bulbs for winter storage.
- Dig the bulbs: Carefully dig around the base of the plant to expose the bulbs.
- Clean the bulbs: Remove any excess soil or debris from the bulbs.
- Dry the bulbs: Allow the bulbs to dry in a warm, well-ventilated area for a few days.
- Store the bulbs: Place the bulbs in a breathable container, such as a mesh bag or cardboard box. Store them in a cool, dark place with temperatures between 40-50°F (4-10°C).
Overwintering Canna Plants in the Ground
In milder climates where temperatures rarely drop below freezing, it is possible to overwinter canna plants in the ground.
- Mulch heavily: Spread a thick layer of mulch, such as straw, shredded leaves, or compost, around the base of the plants. This will insulate the bulbs and protect them from cold temperatures.
- Protect from wind: Build a windbreak around the plants to shield them from strong winds.
- Monitor temperatures: Keep an eye on the weather forecast and cover the plants with a blanket or tarp if temperatures are expected to drop below freezing.
Overwintering Canna Plants in a Greenhouse
If you have a greenhouse, it is an ideal place to overwinter your canna plants.
- Provide light: Canna plants need some light during the winter, so make sure your greenhouse has windows or artificial lighting.
- Maintain humidity: Canna plants prefer humid environments, so mist them regularly or use a humidifier.
- Control temperature: Keep the temperature in the greenhouse between 50-60°F (10-16°C).
Watering and Fertilizing
- Water sparingly: Canna plants do not need much water during the winter. Water them only when the soil is completely dry.
- Avoid fertilizing: Do not fertilize your canna plants during the winter.
Pruning and Repotting
- Prune back foliage: In the spring, once the danger of frost has passed, cut back any dead or damaged foliage.
- Repot if necessary: If your canna plants have become too large for their pots, repot them into larger containers filled with fresh potting mix.
Preventing Pests and Diseases
- Inspect regularly: Check your canna plants regularly for pests or diseases.
- Treat infestations promptly: If you find any pests or diseases, treat them immediately according to the manufacturer’s instructions.
Wrapping Up
By following these tips, you can ensure that your canna plants survive the winter and thrive in the spring. With a little care and attention, these tropical beauties will reward you with their stunning blooms for years to come.
Information You Need to Know
Q: Can I overwinter canna plants in a basement?
A: Yes, you can overwinter canna plants in a basement if it is cool, dark, and has good ventilation.
Q: How often should I water my canna plants during the winter?
A: Water your canna plants only when the soil is completely dry.
Q: Is it necessary to fertilize my canna plants during the winter?
A: No, do not fertilize your canna plants during the winter.
