Native to the mountainous areas around the Qinling Mountains and the Dabashan Mountains in western China, Hanzhong is the earliest artificial cultivation of peony in China, which is a deciduous subshrub. It is a deciduous sub-shrub. The peony likes coolness and hates heat, and it prefers dryness and humidity. It can tolerate the low temperature of -30℃, and it can grow normally in the area where the average annual relative humidity is about 45%. It prefers shade and is less intolerant to sunlight. Require loose, fertile, well-drained neutral soil or sandy soil, avoid sticky soil or low temperature planting. Flowering period of 4-5 months. Cultivated by grafting, because it belongs to the same genus of peony as peony, and more peony as rootstock.

I. Soil

1. Soil quality: peony is suitable for loose and fertile soil with deep layer. Soil drainage must be good. Pot plants can be grown in general culture soil. 2、Soil properties: neutral or neutral slightly alkaline soil.

Two, watering

Peony

[2]Proverbs say, proverb says, "Peony should be dry rather than wet." Peony is a deep-rooted fleshy root, afraid of long-term waterlogging, usually watering should not be more, and it should be appropriately dry.

Third, fertilization

A proverb says: "clear peony", "turbid peony". Cultivation of peony base fertilizer must be sufficient. Base fertilizer can be compost, cake fertilizer or manure. Usually it is good to fertilize three times a year, i.e., half a month before blossoming, spraying a phosphate-based fertilizer plus flower strong tilling; half a month after blossoming, applying a compound fertilizer; and applying a compost before winter to ensure the blossoming in the second year.

Fourth, temperature

Peony is hardy and does not tolerate high temperature. In East and Central China, it can be overwintered in the open ground when the temperature reaches 4℃ and the flower buds begin to expand gradually. Suitable temperature: 16~20℃, no flowering below 16℃. Summer heat, the plant is semi-dormant.

V. Light

Proverbs, Peony

[3] As the saying goes, "Yin camellia, Yang peony." Peony likes sun, but not sunshine. When planted on the ground, it is necessary to choose a higher ground facing east to the sun, and potted plants should be placed in the sunny east balcony, such as the south balcony or roof terrace, and the west side should try to shade.

Sixth, cultivation techniques

Luoyang Fan Yu works - the only two Qiao

1. planting Choose a sunny, not waterlogged place, preferably sunrise slopes, on the fertile, well-drained sandy loam. Before planting, the land should be turned over y, and the planting pit should be appropriately large, and the peony roots should be put into the hole vertically and spread out, so that the roots cannot be fisted. The planting should not be too deep, and it is good to just bury the roots. Generally, there are fewer potted plants. 2. Light and temperature Adequate sunlight is favorable to its growth, but it is not resistant to the hot sun in summer, and the temperature above 25℃ will make the plant dormant. Flowering temperature of 17 -20 ℃, but the flower must be 1 -10 ℃ before the low-temperature treatment of 2 -3 months. It can tolerate a low temperature of - 30℃ at the lowest, but it is necessary to take appropriate measures against cold in winter in the northern cold zone to avoid frost damage. The high temperature and high humidity in the south is extremely unfavorable to the growth of peonies, therefore, the cultivation of peonies in the south needs to be given specific environmental conditions in order to enjoy the beautiful peony flowers.

3. Watering and Fertilizing Water twice before planting. Before winter, pour water once to ensure its safe overwintering. After spring, depending on the soil dryness and wetness of the water, but do not water too much. Generally apply 3 times throughout the year, the first time for the pre-flowering fertilizer, fast-acting fertilizer, to promote its flowers to open a good. The second time for the post-flowering fertilizer, the pursuit of 1 time organic liquid fertilizer. The third time is the autumn and winter fertilizer, to the base fertilizer, to promote the following spring growth. In addition, we should pay attention to weeding, no weeds can be shallow plow loose soil. 4. Plastic pruning After the flowers are removed in a timely manner, pruning, according to the natural growth of the tree combined with the shape of the tree they want to cut, while in the pruning mouth coated with a healing antiseptic film to protect the wound, to prevent the invasion of infection by pathogens. If you want to plant low, dense flowers, then short cut heavy, in order to inhibit the expansion of branches and root tillers occur, generally retain 5-6 branches per plant is appropriate. 5. Flowering control Potted peonies can be treated in winter and blossom in Spring Festival by selecting robust peony varieties with full scale buds (e.g. Zhao Pink, Luoyang Red, Shengdan Furnace, Ge Jin Zi, Pearl Sand Basis, Dazihu Red, Mo Kui, Wulong Huan Sheng, etc.) to be taken up with the soil, try to injure the roots as little as possible, and then dry the pots for 12-3 days in the shade, then do the shaping and trimming, leaving 10 branches with full top buds in each plant, and the remaining buds are wiped off. The top buds of each plant should be kept, and the rest of the buds should be wiped out. When potting, the size of the pot should be matched with the plant to achieve a satisfactory shape. After watering thoroughly, normal management. 50-60 days before the Spring Festival will be moved into the greenhouse at about 10 ℃ sprayed 2-3 times a day, pots keep moist. When the scale buds expand, gradually increase the temperature to 25-30 ℃, the night temperature is not less than 15 ℃, so that the Spring Festival visible flowers.