Hawthorn is very cold-resistant. Hawthorn can generally tolerate the temperature of -36 degrees, and the lowest temperature can tolerate the low temperature of -40 degrees, so hawthorn can be cultivated outdoors.

Cold resistance temperature of hawthorn in northern China

The temperature that the northern hawthorn can withstand is -40 degrees. The hawthorn planted on the ground can be cultivated outdoors, but if it is potted hawthorn, it must be moved indoors for maintenance in order to ensure safe wintering.

Hawthorn growth temperature

Hawthorn is a cold-tolerant fruit tree, and its temperature requirements are not strict. The optimum temperature is 25~27℃. In winter, the temperature should be kept above MINUS 30 degrees, so that hawthorn can spend the winter safely.

Hawthorn overwintering

Hawthorn generally does not freeze to death in winter. In order to make hawthorn overwinter better, several measures can be taken:

Shaping and pruning: Hawthorn should be shaped according to the tree, mainly in spindle shape and sparse layer shape. Overlapping, crossing and crowded branches should be removed, and the distribution of main branches should be ensured after pruning.

Windproof: The wind is very strong in autumn in the northern region, and hawthorn is likely to be blown down by the strong wind, so it will not be able to survive the winter normally. It is necessary to build a windproof barrier for it to keep out the wind.

Covering: In addition, when building a windbreak barrier, hawthorn should be covered, and the soil should be compacted to improve the soil density, and at the same time, water should be added to keep the soil fertile, which is conducive to the overwintering of plants.