Like warm and humid climate, not cold-resistant, afraid of frost. Like sunshine, it is suitable for cultivation in areas where the temperature is 17- 19℃, the annual rainfall is 1000mm, the annual sunshine is 1000h, and the frost-free period is over 300d d. When the temperature is lower than 3℃, all the seedlings will die. It is suitable to cultivate on sandy soil with abundant sunshine, deep soil layer, loose and fertile soil and good drainage.
Extended data
The story of croton
Li Shizhen was a famous TCM doctor in Ming Dynasty. In the neighboring county of Li Shizhen, there is an old lady in her sixties who has been suffering from abdominal pain and diarrhea for more than five years. At ordinary times, as long as you eat cold or greasy food or melons and pears, your stomach will be unbearable immediately, and your diarrhea will get worse. The old man suffers from illness all the year round and his body is very weak.
In order to cure the disease radically, the old lady has seen many doctors, and all of them think it is a common diarrhea, so they all follow the common sense and prescribe drugs for her to take "regulating the spleen", "lifting the spleen", "stopping diarrhea" and "relieving astringency". After the old man took the medicine according to the doctor's advice, diarrhea not only failed to eliminate, but became more serious. Is it hopeless? The old man and his family were deeply desperate and wept bitterly.
Later, someone told the old lady that Dr. Li Shizhen in Qichun County often had a good prescription for some incurable diseases. So they quickly invited Li Shizhen to see a doctor at home. Li Shizhen found that the pulse condition of the old man was heavy and slippery, and concluded that it was a disease of "prolonged injury of the spleen and stomach, stagnation of cold accumulation". Long-term injury of the spleen and stomach of the old man led to stagnation of cold accumulation, which led to diarrhea.
Diarrhea is only the external manifestation of the disease, and its main reason is stagnation of cold accumulation. Only by removing cold accumulation can the disease be fundamentally cured. Li Shizhen boldly prescribed a prescription for patients to take 50 croton pills. However, in people's minds, croton has always been a pungent and toxic laxative, and all previous cursive scripts said that it should be used with caution. Tao Hongjing, an ancient famous doctor, said croton can diarrhea people the most. How to treat diarrhea and use laxatives instead? Isn't that fatal?
As soon as the prescription came out, many old doctors immediately questioned and strongly opposed it. Some people used the theory of medical books to blame Li Shizhen: Croton was originally a laxative, and the old people suffered from diarrhea. Isn't it strange to attack the medicine to treat diarrhea? At that time, everyone said that he was fooling around, and the relatives of the patients began to be skeptical and worried about the prescription.
Li Shizhen knew that croton was a drug with a strong purgative effect, but it was found in medical practice that "severe use has the power to suppress disorder and rob diseases, and micro-use also has the wonderful effect of soothing and relieving depression". A small amount of croton can stop diarrhea, and the key is to grasp the dosage properly, and it can get rid of the stagnation of cold accumulation in the intestine. This patient just caused diarrhea because of the "cold accumulation and stagnation" in the intestine, so he chose to use the method of removing cold and stopping diarrhea under heat.
Li Shizhen, after repeated experiments, sometimes even tried croton himself, had mastered the degree of medication, so he was confident in his prescription and insisted on persuading the old woman's family again. The old lady took this controversial medicine with trepidation.
Unexpectedly, after taking the medicine, the patient did not have diarrhea for two days in a row, and his complexion was getting better day by day. Slowly, he was greasy and fruits and vegetables were free to eat, and finally he miraculously recovered. At that time, rumors were automatically eliminated, and people rushed to tell each other, and everyone had to admire Li Shizhen. Li Shizhen's fame is getting bigger and bigger. ?
References:
Baidu encyclopedia-croton