Culture methods of Paeonia lactiflora

1. Planting time of peony: peony likes sunshine, cold resistance, cold and hot temperature requirements, and poor growth in summer high temperature. Autumn is the best time to plant peony.

2. Soil quality: When planting peony, choose sunny land with high terrain and good drainage, and avoid planting it in low-lying places where water is easy to accumulate. Paeonia lactiflora is a fleshy root. When planting, we should choose loose, fertile and slightly acidic sandy soil. It should not grow in alkaline soil. If the soil is too alkaline, it will cause yellowing of leaves and even atrophy and death.

3, cultivation points: open field cultivation, should be applied manure deep ploughing, fine after finishing into high ridge. Generally, the height of the ridge is 10~15 cm, the width of the ridge is 70 cm, and the length is unlimited. Cultivated plants are 80 cm apart. When cultivating, dig pits according to the length and size of root systems, pay attention to the extension of roots, not too deep, cover soil with 4~5 cm of top buds, irrigate once after planting, and overwinter.

4. Fertilizer and water management: In addition to natural precipitation, peony does not need to be watered frequently. Usually only in the most water demand before and after flowering and in spring drought only appropriate irrigation several times to supplement the lack of soil moisture, each watering should not be too much. Topdressing should be controlled, topdressing three times a year, the first time in the shoot quickly out. When leaves and buds are spreading, quick-acting fertilizer is mainly applied, which is called flower promotion fertilizer.

5, plastic pruning: in order to make peony flowers colorful, strong growth, plastic pruning is very important. Peony shaping mainly includes stem determination, pruning, bud removal, bud thinning, pruning residual flowers and other work. Peony planting 2-3 years can be fixed dry. For strong growth potential, vigorous growth of varieties, can be pruned into a single stem peony. For the varieties with weak growth potential and small number of branches, the weak branches are generally cut off and the strong branches are retained.

6. Pest control: Common pests and diseases of peony include brown spot disease, anthracnose disease, rust disease, root rot disease, root nodule nematode disease, longicorn beetle, red spider, beetle, mole cricket, etc., among which exhaust spot disease, anthracnose disease and rust disease are fungal diseases. Pest control should focus on early prevention, once there are pests and diseases. According to the occurrence degree, according to the above dosage, the spraying interval should be shortened appropriately and the number of doses should be increased.

Cultivation method of peony flower

Peony (will leave, no bone flower)

Alias: will leave, leave grass, mature tail spring, residual capacity, plow food, no bone flower, black lead Yi, red medicine, etc.

Family: Ranunculaceae

Description: With stout roots underground, plant height 60 - 120 cm. Leaves alternate, bipinnate. Flowers-to several on top of stems or branches, long pedunculated, large and aromatic. There are many varieties of gardening.

Ecological habits: like light, very cold, avoid summer damp, suitable sandy soil. Peony plant in-year, with the climatic rhythm changes, and the development of the stage changes. It mainly shows the alternation of growth period and dormancy period. The vernalization stage of dormancy and the illumination stage of growth are the most critical. Peony vernalization stage, requires 0 degrees Celsius low temperature, after 40 days or so to complete, mixed bud growth germination out of the ground both long leaves, and bud flowering. Paeonia lactiflora is a long-day plant, flower bud development and flowering in long days, mixed bud germination, if the light time is insufficient, or in short days, usually only long leaves do not bloom or abnormal flowering.

Flowering: April to May.

Flower language: shame, shyness, impatience. China's traditional flowers, known as "flower fairy" and "flower phase."

Garden uses: flower platform, flower border, flower platform, special garden, cut flowers, potted plants.

Species identification: genus similar species one by one peony p. suffruticosa。

① Paeonia lactiflora: grass, plant relatively short, leaflets narrow, front end not split, black green on both sides, flowers in clusters at the top of the branch, flowers relatively small, flowering in early May. Peony flower cultivation method peony for ranunculaceae, peony perennial root herbs. There are fleshy thick taproot, stem cluster, stem and leaf peduncle have purple and green two kinds. Leaves alternate, trifoliate, leaflets trifid. Flower buds are solitary at the top of branches and bloom around summer. 1. Habits: peony is cold-resistant, likes fat and fears waterlogging, likes wet soil, but also drought-resistant, likes sunshine, likes cool climate in summer. Potted peony leaves are easy to scorch under the scorching sun in midsummer, so we should pay attention to shade. Paeonia lactiflora is a fleshy root with a long root system, so it should be planted in fertile loose, well-drained sandy loam, planted in clay and low-lying ponding places easy to rot roots. Second, propagation: peony propagation has two kinds of sub-plant method and sowing method. 1. Plant division propagation method: The best time for plant division is from late September to early October. At this time, the aboveground part of Paeonia lactiflora has stopped growing, and the rhizomes have the most sufficient nutrients. After plant division, the roots still have a period of recovery growth time, which is beneficial to the growth of the whole plant in the coming year. First, dig out the roots of the mother plant, shake them off and attach them to the soil, air them for one day, then separate the roots along the natural separation of paeonia lactiflora, cut them with a sharp knife, and each clump of roots has 4 to 5 buds. The root incision is best coated with sulfur powder to prevent the invasion of germs, and then 1 to 2 days can be planted separately. Open field planting peony, plant spacing 50 cm, row spacing 70 cm, potted peony, flowerpot diameter and depth are 40 cm more appropriate. Peony, which is mainly for flower viewing, should be divided once every 5 to 6 years, and peony, which is mainly for drug collection, should be divided once every 3 to 5 years. 2. Sowing propagation method: peony seeds mature in August, fruit cracking, should be picked with sowing. Before sowing, soil preparation should be done, water should be poured thoroughly, and then sowing should be done. After sowing, cover with fine sand, the thickness is 1 to 2 times the diameter of the seed, keep the soil moist frequently, and cover it with corn stalk or straw when necessary to achieve the purpose of shading, ventilation and moisture retention. The seeds planted in autumn can take root in the same year, but the buds can only emerge after the warm spring of the following year. Sown seedlings grow slowly, and well-developed seedlings take 3 to 4 years to flower. General sowing peony, more in order to cultivate new varieties. Third, cultivation management: peony can not be transplanted frequently after planting, otherwise it will damage the roots, affect the growth and flowering, in order to make peony grow well, reasonable fertilization is needed every year. The first time is applied when budding in March; the second time is applied when flower buds are present in April; the third time is applied after flowering in late May; the fourth time is applied after summer heat in late August when flower buds of the following year are formed; and the fifth time is applied in November, winter fertilizer is applied in furrows around plants. After each fertilization, water should be sufficient and soil should be loosened immediately to reduce water evaporation. Intertillage and weeding should be done regularly in rainy season. Potted peony, cut off withered branches and leaves after frost to prevent pests from breeding. No need to move indoors during winter, placed on the balcony or under the eaves of the sunny place, basin soil should not be too dry can be. Before peony blossoms, after the side bud appears, it can be removed in time to concentrate nutrients and promote the top bud flower beauty. After the flower withers, if you do not intend to sow and reproduce, you should always cut off the pedicels to avoid seed setting and nutrient consumption. IV. Prevention and control of pests and diseases: white grubs, red spiders and aphids are pests that harm peony. In order to prevent white grubs from biting peony roots, root irrigation with 1000 times 50% phoxim diluent can be used in early spring every year. For red spiders and aphids available dimethoate spray kill. The main disease of peony is brown spot disease, its symptoms are, brown spots appear on the leaves of peony in summer, and after autumn, the leaves gradually wither, even the whole plant dies. The control method is to spray Bordeaux mixture once or twice a month from April to autumn.