As a cash crop, roses are mainly used for food and extracting rose oil, and rose oil is used in cosmetics, food, fine chemicals and other industries.
In European languages, rose, rose and Chinese rose all use the same word, such as rose in English and Die Rose in German. Rose is the national flower of Britain. "Rose" in the popular sense has become a general term for many Rosa plants. In fact, hybrid roses are also produced by cross breeding of various species under roses.
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Growth habit of roses
Roses like sunny, cold-resistant and drought-tolerant, and loose and fertile loam or light loam with good drainage. They don't grow well in clay loam, and they don't bloom well. It should be planted in a well-ventilated place away from the wall to prevent sunlight from reflecting, burning the bud and affecting flowering.
Roses are masculine plants, which are rich in color and fragrance in sunny conditions. If the sunshine is less than 8 hours in the growing season, it will grow white without flowering. The requirement for air humidity is not strict, and rust and powdery mildew will occur at low temperature and high humidity; The flowering period needs air with a certain humidity.
When drying at high temperature, the oil yield will decrease. Roses do not require high pH value of soil, and can grow normally from slightly acidic soil to slightly alkaline soil. In winter, snow-covered areas can tolerate the low temperature of -38℃ to -40℃, and areas without snow can tolerate the low temperature of -25℃ to -30℃, but they can't tolerate the dry wind in early spring.
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