What are the conditions for cultivating osmanthus trees?

Hello, sweet-scented osmanthus belongs to long sunshine plants, like to grow in places with plenty of sunshine and thick soil layer and good drainage, the soil should be slightly acidic, PH5.5~6.5. Avoid alkaline soil, afraid of stagnant water and soot. Potted plants are needed in the north, and low-temperature greenhouse overwinters. The temperature of about 0 ℃ will not be harmful to potted sweet-scented osmanthus. There are two kinds of flower cultivation: open field cultivation and pot cultivation. Potted plants are planted in the north. The main results are as follows: 1. Planting sweet-scented osmanthus in open field is more than that in early spring. The planting site should choose a place with plenty of sunshine, good drainage and deep soil layer. Before planting, dig a big hole, apply more organic fertilizer, and at the same time add some plant ash, the seedlings need to be transplanted with soil rope to facilitate survival. Fully irrigate after planting. Apply liquid fertilizer once after survival. Water and fertilizer were applied 1-2 times from July to August. Rotten compost is applied before winter. After that, one quick-acting nitrogen fertilizer was applied in late March, one available phosphorus and potassium fertilizer was applied in July, and another organic fertilizer was applied in October. After each fertilization should be timely irrigation and weeding, usually pay attention to timely prevention and control of diseases and insect pests, so that the growth can be accelerated, blooming every year, flowers are fragrant. 2. For potted plants to make sweet-scented osmanthus blossom and smell fragrant, it is necessary to grasp five main links, such as selecting pot soil, watering at the right time, applying fertilizer skillfully, pruning properly, and preventing and controlling diseases and insect pests. The cultivated varieties can be propagated by sowing, grafting, cutting or striping, and the seeds have post-ripening period and need to be stored in sand for half a year before sowing. Cuttings are carried out before sprouting in spring, select annual branches as cuttings, insert them into plain sandy soil or peat soil, cover them with plastic film, maintain them in a shaded place, and take root after autumn. When a large number of seedlings are propagated, lobular privet is often used in the north and biennial seedlings of Ligustrum lucidum in the south are used as rootstocks. They are cut from 5 cm above the ground before spring germination and grafted with splicing method. Most of the potted sweet-scented osmanthus in the north propagated by grafting before the Summer Solstice went into ambush. In early spring, the leaflet privet was planted in a pot, and then the branches with similar thickness on the sweet-scented osmanthus tree were grafted. White Dew cut the scion away from the mother and cut off the branches on the interface of the rootstock at the same time. Sweet-scented osmanthus prefers warm, dry, sunny environment and fertile, well-drained slightly acidic soil. Potted sweet-scented osmanthus needs to change the soil once a year before sprouting in spring, and properly trim the dense and senescent whisker roots. From April to September, it should be cultivated in a ventilated and sunny place, and the watering should be dry and wet. Avoid watering too much or stagnant water in the basin after rain. During the flowering season, you can't water too much. Otherwise, it is easy to cause falling bud. Sweet-scented osmanthus likes fertilizer and applies mature dilute liquid fertilizer every 7 to 10 days in the growing season. Apply dry fertilizer before and after flowering (about 50 grams per pot). Pre-flowering application can promote flowering, and post-flowering application can promote the growth of new branches in the coming year. Sweet-scented osmanthus is fragrant flowers and trees, like phosphorus and potassium fertilizer. Therefore, more fertilizers containing more phosphorus and potassium should be applied during the whole growth period. In late autumn, it is necessary to move to a cold room above 0 ℃ to overwinter, keeping the pot soil slightly moist and making it fully dormant, which is beneficial to blossom in the coming year.