How should evergreen shrubs be cared for in winter so they can safely make it through the cold season?

Evergreen shrubs keep their green leaves in winter, adding a touch of vitality to the cold season. However, the severe cold and dryness of winter are a tough test for evergreen shrubs. To help evergreen shrubs survive the winter safely, we need to take a series of measures, from protecting the trunk to watering properly, to care for their growth in every way. The following are some key methods and suggestions for evergreen shrubs to get through winter.

Wrapping the trunk for insulation:For newly transplanted or weaker-growing evergreen shrubs, wrapping the trunk with insulation tape is a simple and effective protective measure. Materials such as straw rope and insulation tape can be used to tightly wrap the main trunk and main branches, to reduce the loss of heat from the tree body and prevent the bark from freezing and cracking. This method is especially suitable for evergreen shrubs before they enter dormancy and lose their leaves in autumn, and can effectively improve their cold resistance.

Using spray-type whitewash:DuringNovembertoDecember, apply spray-type whitewash to the trunks and branches of evergreen shrubs. Whitewash can not only reflect sunlight and reduce heat absorption by the tree body, but also kill insect eggs overwintering in the bark and prevent diseases such as rot and gummosis. At the same time, the whitened trunk is more conspicuous, which helps reduce accidental damage.

Watering with freezing water:In northern regions, freezing water is usually applied inDecember. This is to help the plant roots stay moist in winter and avoid freezing due to drought. When watering, make sure water remains in the tree pit until it no longer seeps away. For newly planted evergreen shrubs, because their root systems are relatively fragile, soil should be mounded on the tree disk to a height of30-50cm before the soil freezes, preferably with soil that is well aerated and not easily compacted, to improve its insulation effect.

Proper pruning:Winter pruning is an important part of evergreen shrub management. Through pruning, diseased and weak branches, leggy branches and crossing branches can be removed, the tree body's ventilation and light transmission conditions can be improved, and the breeding of pests and diseases can be reduced. At the same time, pruning can also promote the accumulation of nutrients in the tree body and improve its cold resistance. When pruning, pay attention to protecting the wounds to avoid frostbite and infection by pathogens.

Setting up wind barriers:In areas with strong winter winds, setting up wind barriers for evergreen shrubs can significantly reduce wind speed and reduce the direct blowing of cold wind on the tree body. Wind barriers can be built using materials such as wooden boards and plastic sheeting, and their height should exceed the tree crown to ensure their protective effect. At the same time, the wind barriers should be built firmly to prevent them from being blown down or damaged by strong winds.

Maintaining moderate moisture:Although plant growth and metabolism slow down in winter and the water required decreases, this does not mean that water is not needed. Evergreen shrubs in particular still carry out transpiration through their leaves in winter and need to maintain moderate soil moisture. Therefore, on clear and windless days, a moderate amount of water can be sprayed or watered to meet their growth needs. But avoid water accumulation, so as not to cause root rot.

For evergreen shrubs to safely get through winter, we need to make efforts in many aspects. Through measures such as wrapping the trunk for insulation, spraying whitewash, watering with freezing water, proper pruning, setting up wind barriers and maintaining moderate moisture, we can effectively improve their cold resistance and ensure their healthy growth. Let us care for these beautiful evergreen shrubs with our hearts, so that they add more vitality and energy to the winter garden.