Pot culture method of holly

The invention discloses a pot culture method of holly, wherein a single shed is used as a pot facility; planting season is from September to March of the following year, 1 to 3 plants are planted in each pot; grass-charcoal soil, washed cow dung and yellow core soil with a volume ratio of (5-7): (2-4): 1 are mixed and used as a matrix; selected pot seedlings are annual or biennial cutting seedlings, in the first year of transplantation, the seedlings are pruned before sprouting and the base parts are kept at a height of 3-20 centimeters, in the second year, after sprouting, polyazolium is usedfor dwarfing; in the 1st-2nd years, the plant types are mainly cultured, and sustained-release fertilizer is balanced. The third year is fruit-bearing year, high phosphorus fertilizer is mainly applied after germination and before blooming, chelated calcium diluent is sprayed after blooming in May for 1-2 times, Nitrogen, Phosphorus and Kalium with a mass ratio of (10-12): (12-16): (18-22) is applied for one time from Ju