According to the photoperiod reaction, it is necessary to classify varieties that can bloom in short sunshine time of 6, 7, 8, 10 or 15 weeks, and 12, 13, 14 or/kloc-0 are required.
Chrysanthemums are distributed in towns and villages in China, especially in Beijing, Nanjing, Shanghai, Hangzhou, Qingdao, Tianjin, Kaifeng, Wuhan, Chengdu, Changsha, Xiangtan, Xi, Shenyang, Guangzhou and Xiaolan Town, Zhongshan. ?
Around the 8th century, chrysanthemum as an ornamental flower spread from China to Japan, and was regarded as the national emblem of Japan. At the end of 17, Dutch merchants introduced China chrysanthemum to Europe, to France in 18 and to North America in the middle of 19. Since then, chrysanthemums in China have spread all over the world.
Extended data:
Potted chrysanthemum
1, single chrysanthemum (variety chrysanthemum, specimen chrysanthemum): cultivated with large chrysanthemums, one plant in each pot, one flower and one plant stand out. It can fully reflect the characteristics of varieties, and can be used for variety identification besides ornamental purposes, so it is also called variety chrysanthemum or specimen chrysanthemum.
2. Multi-chrysanthemum (multi-chrysanthemum, multi-variety chrysanthemum): cultivated with large flowers, one plant in each pot, with dozens of flowers. Used in gardens, venues, etc.
3. Table Chrysanthemum: Plant big chrysanthemums in small pots, one in each pot and one in each pot. Branches protrude from the leaves, and the skirt covers the flowerpot. Small flowers are big and not high enough. It is suitable for several desks and can be arranged in the hall, bedroom and study.
4. Potted chrysanthemum: Chrysanthemum seedlings are planted in the tile. After budding, take out the tile tube and move it into the basin for viewing.