Peony retarding culturing method

The invention belongs to the technical field of biology, particularly relates to a peony retarding culturing method. The peony retarding culturing method includes the steps of (1) selecting a peony variety suitable for retarding culturing; (2) refrigerating storage in basins so as to protect a new root and improve nutrient absorption efficiency; (3) daubing gibberellin on a peony seedling once every day so as to increase flowering rate; (4) after leaves grow on the peony plant, spraying monopotassium phosphate with mass concentration at 0.1% on leaf surfaces once every two days, spraying urea with the mass concentration at 0.1% on the leaf surfaces once every five days, and at beginning of a budding stage, fertilizing compound fertilizer solution at the mass concentration at 0.2% once every week. By creatively combining the above four steps, flowers of the peony can be large in size, gorgeous in color and good in viewing effect, quality of the peony obtained from retarding culturing is improved, and industria