Growth habit of chrysanthemum

Chrysanthemum has strong adaptability, likes cold and is cold-resistant. The optimum growth temperature is 18-2 1℃, the highest is 32℃, and the lowest is 10℃. The low temperature tolerance limit of underground rhizomes is generally-10℃. The lowest night temperature at flowering stage is 17℃, and it can be reduced to 15- 13℃ at flowering stage (middle and late stage). I like plenty of sunshine, but I also tolerate shade a little.

More resistant to dry, the most taboo waterlogging. I like sandy loam, which is located in Gao Qian, with deep soil layer, rich humus, loose fertility and good drainage. It can grow in slightly acidic to neutral soil, and the pH value is 6.2-6.7. Avoid continuous cropping. ?

Autumn chrysanthemum is a long-night plant, and its stems and leaves grow nutritionally under the long sunshine of 14.5 hours every day. Darkness of 12 hours per day and night temperature of 100 degrees Celsius are suitable for flower bud development. But different varieties have different reactions to sunlight.

Extended data:

Chrysanthemum is the city flower of Beijing, Taiyuan, Dezhou, Wuhu, Zhongshan, Xiangtan, Kaifeng, Nantong, Weifang and Changhua in China. It is also the national flower of the Japanese royal family.

Chrysanthemum has experienced wind and frost and has tenacious vitality. Because Tao Yuanming picked chrysanthemums under the hedge, chrysanthemums got the title of "hidden in flowers". In Japan, chrysanthemum is a symbol of royalty. Chrysanthemums have various colors and different meanings.

Chrysanthemum symbolizes longevity: Chrysanthemum blooms in autumn, so it is a symbol of autumn. People even call September "gathering the moon", because chrysanthemum is homophonic with "syndrome" and "nine" with "long", so chrysanthemum is also used to symbolize longevity or longevity.