How do dahlias survive the winter? Do they need to be dug out in winter?

1. How to dig out the tubers for winter

Dahlias are not very cold-resistant and the temperature is relatively low in winter, so they must be kept warm in time. The main stem above the roots should be trimmed off after the frost, and the soil in the flowerpot should be poured out and the tubers taken out. The tuberous roots are not cold-resistant and should be buried in sand. It should also be placed in a place where the temperature is about 5 degrees. Be careful not to let the temperature be too high, otherwise the tubers will germinate prematurely and affect growth next year.

2. Wintering method without digging up roots

Dahlias do not need to be dug out during the winter, but you must pay attention to the maintenance methods. When frost falls, the main stem should be cut off, and then placed in a well-lit place indoors with the potting soil. Pay attention to the indoor temperature, which should not be too high, and it should be maintained between 5 and 10 degrees. In addition, be careful not to water too much. Keep the plant dry at ordinary times. Watering once or twice throughout the winter will be enough. Watering too much will affect the winter.

3. Precautions for wintering

No matter which method you use to spend the winter, you must pay attention to the temperature. The temperature cannot be too high. It can be placed outdoors in warm areas in the south, but most areas in the north have heating, so it must be placed without turning on the heating. If the temperature is too high, it will germinate prematurely and affect the later growth and flowering.