Rose heart peony is a hybrid peony variety developed by Bockstoce/Landis from the United States in 1974 It originated in North America and gradually expanded through introduction and promotion. Paeonia lactiflora has high ornamental value, beautiful flower shape, bright colors, and a long flowering period. It is suitable for edge arrangement in flower beds and flower borders, and can also be planted in combination with other flowers in the courtyard to create a romantic floral landscape. It can also be used as a cut flower material for vase insertion or bouquet making. Its vase insertion has a