What family and genus is Chinese rose?

Rose is an evergreen and semi-evergreen low shrub in Rosaceae. The leaves are pinnately compound, the surface is dark green and shiny, the back of the leaves is blue and white, and there are small stipules on the hairless surface. Flowers are divided into single petals and double petals. Double dark red, slightly like a rose.

The main color is red, others are white, yellow, pink and rose red. Rose fruit is oval or pear-shaped, and it is red at maturity. The natural flowering period is from April to September. Rose is named because it can be seen in spring, summer, autumn and winter all year round, and it is named "Moon Red" and "Catharanthus roseus" because it blooms almost once a month.

China is one of the origins of Chinese rose. In China, it is mainly distributed in the mountainous areas of Hubei, Sichuan and Gansu provinces. Especially in Shanghai, Nanjing, Changzhou, Tianjin, Zhengzhou and Beijing.

Growth habit of roses

Rose has strong adaptability, cold tolerance and drought tolerance. Although the climate and soil requirements are not strict, it is more suitable to use loose, fertile, organic-rich, slightly acidic and well-drained micro-strip acidic sandy loam. Sexually, I prefer a warm, sunny and ventilated environment and a warm and humid climate. Generally, 22~25℃ is the most suitable temperature for flower growth.

The optimum temperature of most varieties is 15-26℃ in the daytime and 10- 15℃ at night. In winter, when the temperature is lower than 5℃, it goes into hibernation. Some varieties can tolerate low temperature of-15℃ and high temperature of 35℃; When the temperature keeps above 30℃ in summer, plants enter a semi-dormant state and grow poorly. Although it can bear buds, it has few petals and dull color, which loses its ornamental value.

The above contents refer to Baidu Encyclopedia-Rose.