The propagation methods of osmanthus trees include sowing, grafting, cutting, layering and cutting. Osmanthus trees generally reproduce asexually.

Cultivation methods: Osmanthus likes a warm and humid environment, but has a certain shade tolerance. It should grow in acidic sandy loam with deep soil, good drainage, fertile, and rich in humus. It cannot tolerate dryness and early infertility. On shallow, compacted and barren soil, it will grow very slowly, with few branches and leaves, thin leaves, and yellow leaves. There will be no blooming or little blooming, and there may even be periodic withering of the top. In severe cases, the entire Osmanthus fragrans plant will die;

The average temperature in the planting area is 14-28℃, and the average temperature in July is 24-28℃. The average temperature in January is preferably above 0°C. Humidity is extremely important for the growth and development of sweet-scented osmanthus. It requires an average annual temperature of 75%-85% and an annual precipitation of about 1,000 mm. Especially young and mature trees require more water when they bloom. If it encounters drought, it will affect flowering, and strong sunlight and shade will be detrimental to its growth. It generally requires 6-8 hours of light per day.

Watering: Water the right amount at the right time, master the "see dryness, see the wetness", do not water when it is dry, and water thoroughly. Generally, water in the morning and evening in summer; water at noon in winter; master the "second few" "One more" means less watering before new shoots appear, less watering in rainy days, and more watering in dry weather in summer and autumn.

Fertilization: After germination in spring, apply fully decomposed thin cake fertilizer and water about every 10 months to promote germination and branching. After July, apply thin decomposed chicken and duck manure water or fish miscellaneous water, or add 0.5% superphosphate to the above fertilizer solution to promote germination and differentiation. Apply the last liquid fertilizer based on phosphate fertilizer in early September, and the sweet-scented osmanthus will grow luxuriantly, bloom more, and smell fragrant. If there is insufficient fertilization, especially insufficient phosphorus fertilizer, there will be few branches, few flowers, and no fragrance.

Propagation: Osmanthus fragrans can be propagated by sowing, docking, cutting, layering, cutting and other methods. Generally, docking and cutting propagation are the main methods. The rootstock used for jointing is Ligustrum lucidum, which can bloom in the same year after jointing. The jointing time is usually carried out in summer.

A large number of sweet-scented osmanthus seedlings can be propagated by cutting. The time is usually in February when the sap is about to flow. In order to promote rooting and prevent diseases, the cuttings should be treated with 800-1000 times trichlorfon one month before cutting. Spray the medicinal solution and disinfect with lime water 10-15 days before inserting. Soak the base of the cuttings with 100ppm naphthalene acetic acid solution for 8-10 hours before cutting. Insert the crops into the soil 2/3 deep, water them thoroughly immediately after cutting, and always maintain a certain humidity. You can also set up a sunshade net above the seedbed. Roots will take root in about 2 months. Transplant once in the second year, and then plant in the third year. Potted osmanthus can be placed in the courtyard under the sun in summer without shading. In winter, it can be safely overwintered indoors.

Pruning: Generally done after flowering or before buds sprout in early spring. If the main trunk is too high and the tree shape is not good, it is advisable to prune the entire shoot at 2/3-3/4 of the main height. Cut off the upper branches to stimulate the sprouting of new branches at the base of the main trunk; for trees with too wide crowns and excessive growth, it is advisable to cut off the upper strong branches and retain weak branches to promote the balanced growth of the entire branches; for trees with too dense branches and excessive growth, If the growth is average, it should be carefully thinned and the branches should be left moderately to promote strong growth.

Pests and diseases and their control: There are diseases such as blight, sooty disease, anthracnose, brown spot, and leaf blight, as well as various pests such as black thorn whitefly, scale insects, osmanthus leafhoppers, and aphids. occur. Under conditions of poor ventilation and light transmission, the harm is more serious. It is necessary to prescribe the right medicine and prevent and treat it in time.

Extended information:

The main value of the sweet-scented osmanthus tree

The sweet-scented osmanthus is evergreen all year round, has luxuriant branches and leaves, and blooms in autumn. It is widely used in gardens and is often used as Landscape trees can be planted alone, in pairs, or in clusters or forests. In our country's classical gardens, osmanthus is often paired with buildings, mountains, and stone structures, and is planted as bush-like plants near pavilions, platforms, buildings, and pavilions. Opposite planting is commonly used in old-style gardens, which was called "Shuanggui Dangting" or "Shuanggui Liufang" in ancient times.

Osmanthus fragrans has certain resistance to harmful gases such as sulfur dioxide and hydrogen fluoride. It is also a good greening flower in industrial and mining areas.

Commonly used for garden viewing, communities, gardens, schools, institutions, factories, hillsides, courtyards, roadsides, and in front of buildings. When in full bloom, the flowers bloom all over the branches, filling the branches with fragrance. It has high ornamental value and is an ideal tree species for beautifying the courtyard.

The flowers of the osmanthus tree are widely loved by people in our country. Osmanthus can be used to make many foods, such as osmanthus cake and osmanthus candy. In addition, osmanthus can also be used to make wine. People in southern my country, the elderly Pick it, dry it and put it in your pillow to rest your mind and have a good sleep. I like brewing osmanthus wine, it tastes sweet and pleasant.

Reference: Baidu Encyclopedia Osmanthus Tree