one
Chrysanthemum has strong adaptability, likes cold and is relatively cold-resistant. The suitable 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 with high and dry terrain, deep soil layer, rich humus, looseness, 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.
two
Chrysanthemum is a short-lived plant with a long night. Its stems and leaves grow nutritionally under the long sunshine of 14.5 hours per day, and the darkness of 12 hours per day and the night temperature of 10℃ are suitable for flower bud development. But different varieties have different reactions to sunlight.
three
Chrysanthemum has strong adaptability, likes cold and is relatively cold-resistant. The optimum growth temperature is 18~2 1 degree, the highest growth temperature is 32 degrees, and the lowest is1degree. The low temperature tolerance limit of underground rhizomes is generally negative 10 degrees. Loose and fertile sandy loam with good drainage can grow from slightly acidic to neutral, so continuous cropping is prohibited. Chrysanthemum is a short-day flower, which has certain resistance to toxic gases such as sulfur dioxide and chlorine.
four
Chrysanthemum is a kind of short-day plant, which can blossom early, like shade, tolerate early and be afraid of waterlogging under short-day sunlight. I like the warm and humid climate, but I can also resist the cold. Roots can overwinter underground in severe winter. Flowers can withstand slight frost, but higher temperature is needed for seedling growth and bud formation. The optimum growth temperature is about 20℃.
five
Chrysanthemum has strong adaptability, likes cold and is relatively cold-resistant. The suitable 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.