How do Hydrangeas in the North survive the winter? How do Hydrangeas in the North overwinter?

How to Help Hydrangeas Survive Winter in the North

Living tips article, about how to help hydrangeas survive winter in the north, including green plant and flower planting information. Detailed content will be shared next.

How to Help Hydrangeas Survive Winter in the North

If you want to ensure that hydrangeas survive winter safely, they must be moved indoors, where the temperature should be above 5°C. Additionally, water and fertilizer should be strictly controlled, watering once every two weeks or so, adhering to the principle of watering only when the soil is not dry. Fertilizing can be completely stopped. The mild winter sunlight allows more sun exposure for the hydrangeas, which should be placed in a well-lit area to help raise the plant's own temperature.

Can Hydrangeas Survive Winter Outdoors?

Hydrangeas are cold-tolerant plants and can withstand temperatures as low as 5°C, allowing them to survive outdoors in the north. In the south, where winters are warm, they can also be left outside to survive safely. However, in the north, where outdoor temperatures can drop below freezing, they should be moved indoors for management.

For potted hydrangeas, since they stop growing and enter a dormant period in winter, water should be reduced. Fertilizing should also be reduced to avoid excessive nutrition due to over-fertilization, and attention should be paid to pest and disease issues.

For hydrangeas planted in the ground, when preparing them for winter, more soil should be added to the roots to protect them. Proper insulation measures must be taken. Especially for gardeners in the north, they can dig up the soil in the spring and then prune the branches.

How to Care for Hydrangeas in the North During Winter

Temperature

Hydrangeas prefer to grow in warm environments, so they have high temperature requirements. In winter, when temperatures are low, hydrangeas can be kept indoors, but the temperature should be maintained at around 20 degrees.

Hydrangeas enjoy shade, but due to large temperature differences in winter, the night temperature should not drop below 10 degrees. During the day, the temperature should be relatively high to maintain a constant temperature.

Watering

In winter, with low temperatures, hydrangeas enter a dormant period and stop growing. Therefore, the amount of watering should be reduced, watering once every two weeks. Thorough watering is sufficient, keeping the soil moist but not dry.

Fertilizing

In winter, the use of fertilizer for hydrangeas should be reduced since they are in a dormant period. Applying too much fertilizer can lead to excessive nutrition and cause the branches and leaves to wither and rot. Diluted fertilizers should be used, with nitrogen being the best choice. A thin application of fertilizer is fine.

Pruning and Insulation

Any rotting leaves and roots should be pruned, and then the hydrangeas can be covered with a plastic bag to retain heat. The plastic bag prevents cold air from entering due to its airtight and non-ventilated nature.

Disease and Pest Control

Although temperatures are low in winter, hydrangeas can still develop health issues. Pesticides should be sprayed for disease prevention, and any diseases that arise should be addressed promptly.

The above shares a detailed introduction on how to help hydrangeas survive winter in the north, hoping to provide flower enthusiasts with some floral knowledge.