Method for cultivating cold-proof flower and fruit dual-purpose plum

The invention relates to a method for cultivating a cold-proof flower and fruit dual-purpose plum. The method mainly comprises the steps of: firstly, selecting a south flower plum variety with full-petalled flowers, bright and beautiful color, fragrance, large pollen quantity, strong cold resistance and high pollen activity; then carrying out cold resistance domestication on the selected plum variety; carrying out seedling seed selection, seedling culturing and grafting on the domesticated plum variety; finally, selecting the plum variety with large fruiting quantity and firm fruits as the cold-proof flower and fruit dual-purpose plum. The cold-proof flower and fruit dual-purpose plum cultured by the method provided by the invention is good in fancy points, firm in fruits, high in yield and capable of being subjected to processing production, therefore, limitation to single ornamentation and fruit processing production of the conventional plum is broken up; through cold resistance domestication, the cold-proo