High quality Petasites palmate A. Gray cultivation method

The invention relates to a high quality Petasites palmate A. Gray cultivation method. The method comprises steps that fertile soil is selected; a land on which crops are not planted is selected as a cultivation land; the cultivation land is deep-ploughed and fertilizer is applied; a segmental Petasites palmate A. Gray parent root is fixedly planted into the cultivation land; 4 to 5 months after the fixed plantation, 300 to 500 kg decomposed chicken dung is dressed to each mu; 20 to 30cm intertillage is conducted; intertillage is conducted each month; 5 to 6 months of fixed plantation, lateral branches are sheared; a main tendril and two lateral branches are remained for each plant; when Petasites palmate A. Gray main tendril grows to 35 to 40cm, leaf fertilizer is sprayed for one time; and the leaf fertilizer is mixed by 0.75% of glucose liquid, 0.3% of potassium dihydrogen phosphate and 100 times lactic acid bacteria. The high quality Petasites palmate A. Gray cultivation method is simple; and Petasites palmate A. Gray cultivating period can be shortened, insect and disease during the cultivation can be reduced and Petasites palmate A. Gray quality can be improved.