The peony is a perennial herb of the family Ranunculaceae and peony. There are thick and thick main roots of the flesh, stems clustered, stems and leaf stems are red and green. Leaves alternate, two to three leaves, leaflets trilobate. The buds are solitary at the top of the branches and bloom before and after the beginning of summer. Paeonia lactiflora is native to China and has wild species in Dabie Mountains, Qinling Mountains and Baihua Mountain in Beijing West. It has a long history of cultivation. The peony flower is bright and colorful, resembles a peony, and the flowers are slightly fragrant. The colors are pure white, reddish, dark red, purple, pink, golden, etc. There are single and double flaps, which are often cultivated for ornamental purposes. Radix Paeoniae Radix can be used as medicine, slightly bitter taste, and has analgesic effects. The relevant knowledge of cultivation of peony is described below. First, habits: drug-resistant and cold-resistant, fertilizer-fearing, like the soil moist, but also drought, hi sunshine, summer cool climate. Potted yam medicines are easy to focus on under the hot sun in summer and should be shaded. The peony root is a fleshy root and has a long root system. It should be planted in fertile, well-drained sandy loam, and easily rotted in clay and low-lying water. Second, breeding: Herbicide breeding ramets and sowing method two. 1. The ramets propagation method: The ramets time is preferably from late September to early October. At this time, the aerial part of the peony has stopped growing, and the root nutrient is the most abundant. After the ramets are planted, there is still a period of time for the roots to resume growth. Plant growth is favorable. First excavate the root of the mother plant, shake off the soil, and let it dry for one day. Then, separate the roots along the natural part of the peony and divide them with a knife. Each branch has 4 to 5 buds. The root incision is preferably coated with sulphur powder to prevent the invasion of germs, and can be planted separately after 1 to 2 days of drying. Herbs planted in open field, with a spacing of 50 cm, a row spacing of 70 cm, potted herbs, and a pot diameter and depth of 40 cm are suitable. Peony, which is mainly based on flowers, should be divided into ramets from 5 to 6 years. The peony, which is mainly based on herbs, should be divided into ramets from 3 to 5 years. 2. Sowing propagation method: When the seeds of peony plants mature in August, the fruits should be cracked. Before sowing, we must do earthworms, water, and sowing. After sowing, sand is finely ground and the thickness is 1 to 2 times of the seed diameter. The soil is often kept moist. If necessary, it can be covered with a layer of corn stalks or straw to achieve shade, ventilation, and moisturizing purposes. The seeds can be rooted in the autumn sowing, but the young shoots can be excavated in the spring of the following spring. The sown seedlings grow slowly, and it takes 3 to 4 years for the well-developed seedlings to bloom. Sows are generally sowed, mostly to cultivate new varieties. Third, the cultivation and management: Peony can not be transplanted often after planting, otherwise it will damage the roots, affecting growth and flowering, in order to make the peony grow well, the need for reasonable fertilization every year. The first time when budding was applied in March; the second time when buds were applied in April; the third time after late flowering in late May; the fourth time after the summer heat in late August, the plants were cultivated during the buds of the following year; The fifth time in November, ditch winter fertilizer around the plants. After each fertilization, pour enough water and immediately loosen soil to reduce evaporation. In the rainy season, weeding should be done frequently. Potted peony herb, cut off withered leaves after frost, to prevent pests and diseases. Do not move into the room during the winter, place it on the balcony or under the eaves in a sunny place, do not overdo it. Before flowering, the side buds can be removed in time to facilitate the concentration of nutrients and promote the beauty of budding flowers. After giving flowers, if you do not plan to sow breeding, you should cut off the pedicels at any time to avoid seeding and consuming nutrients. Fourth, the prevention and control of pests and diseases: The insects that cause harm to praying drugs are mites, spider mites and aphids. In order to prevent biting of chyme roots, it can be treated with 1000-fold 50% phoxim dilute solution every spring. Can be used to kill spider mites and aphids. The main diseases of peony are brown spot, and the symptoms are brown spots on the leaves of peony in summer. After autumn, the leaves gradually wither and even the whole plant dies. The prevention and control method is that from April to the end of the autumn, Bordeaux fluid is sprayed once a month to two times.