How to grow dahlias in winter

Dahlias belong to the genus Dahlia in the Asteraceae family. They are famous for their tuberous root form, large flowers, bright colors, and abundant flowering. With proper care, dahlias can display stunning blooms that fill the entire pot. However, some dahlias do not perform well in terms of flowering numbers and are susceptible to frost damage or even death in winter. Next, let’s learn how to grow dahlias in winter.

1. Temperature management

Dahlias are sensitive to temperature conditions and neither like high temperatures nor adapt to low temperatures. When the temperature exceeds 25 degrees Celsius, shading and cooling measures should be taken. When the temperature drops below 10 degrees Celsius in winter, insulation measures should be taken. It is recommended that when the temperature drops below 10 degrees Celsius, dahlias should be moved to a warm place indoors, but avoid placing them directly on the floor heating or near the heating outlet to prevent overheating. It is best to keep the temperature between 15 and 20 degrees Celsius.

2. Adequate lighting

When caring for dahlias in winter, adequate sunlight is essential. Unlike other tuberous bulbous flowers , dahlia tubers usually remain in their pots over the winter. Adequate light not only helps it to safely overwinter, but also significantly improves its growth and flowering conditions next year. It is recommended that in winter, you only need to place the dahlia in a warm and sunny place, without any other operations, and wait for the growth of new buds next year.

3. Moisture control

Tuberous flowers have low water requirements and store a lot of water themselves. The dahlia's branches and leaves have been pruned, and its water consumption has been reduced. The water it stores is enough to survive the winter, so there is no need for additional watering.

4. Avoid fertilizing

Dahlias are basically dormant in winter and their growth stops. Not only will the fertilizer not be absorbed at this time, but it may cause fertilizer damage, leading to root burns and tuber rot. Therefore, it is not advisable to apply fertilizer when caring for dahlias in winter.

The above is an introduction to some key points and precautions for growing dahlias in winter. Pay attention to temperature and light issues to ensure your dahlias survive the winter smoothly.