Plum blossoms bloom in Jinan Quancheng Park, and ling Han blooms. Why is the season of plum blossom different from other flowers?

Plum blossom has a basic physiological demand, that is, it can form flower buds after a certain stage of low temperature. Sensitive to temperature, it can blossom when the average temperature reaches 6-7 degrees in half a month. What if there is no low temperature? Frozen? In this process, plum blossoms cannot bloom, which is the difference between plum blossoms.

Different flowers have different growth periods and flowering habits. Plum blossoms are not afraid of cold, and about 0℃ is the best temperature for them to bloom, so plum blossoms will not bloom until winter. Plum is a short-day plant, which needs less than 12 ~ 14 hours of light for normal growth and flowering. In China, the days are short and the nights are long in winter. Light is one of the reasons for plum blossom in autumn. Most plants bloom in spring and summer, but plum blossoms are different. Leaves do not bloom only in warm seasons, but only in cold winters. Plum blossoms bloom in winter and spring, but the weather is too cold for plum trees to grow and even freeze to death. Before the arrival of cold air, the gardener's uncle will take warm measures for plum trees, and Xiaomei trees can also be moved indoors to ensure their safety in winter.

Chimonanthus praecox and Prunus mume both bloom in winter and spring, but they are not related in plant classification. Botanically speaking, Chimonanthus praecox belongs to Chimonanthaceae, while Chimonanthus praecox belongs to Rosaceae. Therefore, compared with cherry blossoms, peach blossoms and plum blossoms belonging to Rosaceae, they are more closely related to plum blossoms than wintersweet. Chimonanthus praecox blooms in cold winter, and its peak flowering period is in the middle of winter, so Chimonanthus praecox is also called Huang Meihua, Han Mei and Dong Mei. However, plum blossoms are in full bloom in early spring, and the peak flowering period is from February to April, so plum blossoms are also called Chun Mei. People who usually pay attention will find that wintersweet is often called a cold guest in a flower, while plum is called a cold guest in a flower.

Plum blossom is a beautiful scenery in winter and an important plant for people to watch in winter. It is widely planted in many gardens, courtyards and parks. Meixi has a warm climate, not strong cold resistance, more drought and flood resistance, and its life span is as long as one thousand years. The flowering period is particularly sensitive to climate change, but the flowering period should avoid strong winds and strong humidity. Except Xingmei line, varieties that can tolerate the low temperature of -25℃ generally can tolerate the low temperature of-10℃. Heat-resistant and can grow at 40℃.

The area with annual average temperature 16-23℃ grows best; Because of its high sensitivity, the flowering period is -5-7℃ in early spring. If it encounters low temperature, the flowering period will be delayed, and if it encounters low temperature, the flowering period will be extended. It should grow in a sunny and well-ventilated place. If it is in a cool and poorly lit environment, it will grow thin and flowers will be scarce. It is not advisable to enter the room too early in winter, and it is advisable to let the flower buds differentiate through the vernalization stage in the late month of 1 1. It should be placed in a sunny place indoors in winter, and the temperature should be kept at about 5℃.