Humidity is very important for the growth and development of osmanthus fragrans. The annual average humidity is 75%-85%, and the annual precipitation is about 1 1,000 mm. Especially when young trees and adults bloom, they need more water. If there is drought, it will affect their flowering, and strong sunshine and shade are not good for their growth. You need 6-8 hours of light every day.
Osmanthus fragrans likes warmth, strong resistance, high temperature resistance and cold resistance. Therefore, it can overwinter in the open air in the areas south of Qinling Mountains and Huaihe River in China. Osmanthus fragrans likes sunshine, but also can resist shade. In full light, it has lush foliage and dense flowers. In the shade, its branches and leaves are sparse and flowers are scarce. If potted indoors in the north, it is especially necessary to pay attention to sufficient light to facilitate growth and flower bud formation.
Osmanthus fragrans is relatively humid, and it is forbidden to accumulate water, but it also has certain drought resistance. Osmanthus fragrans is not strict with the soil. It can grow except alkaline soil and low-lying land or soil that is too sticky and poorly drained, but the slightly acidic sandy loam with deep soil layer, loose and fertile soil and good drainage is the most suitable.
Extended data:
Osmanthus fragrans is one of the top ten traditional famous flowers in China. There are four kinds of osmanthus fragrans, namely Jingui, Yin Gui, Dangui and Sijigui. They are not only very beautiful ornamental flowers, but also have strong fragrance, which makes people feel happy. It is also a flower with a history of eating for hundreds of years, which has been recorded in herbal medicines in past dynasties.
Chinese medicine believes that sweet-scented osmanthus is warm and pungent, contains volatile oil, wax and luteolin, and has the effects of warming the middle warmer, dispelling cold, warming the stomach and relieving pain, resolving phlegm and removing blood stasis. Can be decocted with other flowers, such as boiling water instead of tea.
External use can be boiled or steamed and heated for external use, which has a good protective effect on the stomach. Osmanthus fragrans, Osmanthus Jelly, Osmanthus fragrans and glutinous rice lotus root are well-known delicacies, which are not only attractive in taste, but also have a certain therapeutic effect.
Osmanthus fragrans does not attract bees, not because it is poisonous, but because bees only collect nectar from cross-pollination. Osmanthus fragrans is self-pollinated, and bees are not interested in this nectar. The edible history of osmanthus for many years also proves that it is non-toxic and harmless. The sweet-scented osmanthus honey we often talk about is actually sweet-scented osmanthus added to honey, and there is also a wild sweet-scented osmanthus honey on the market. Honey source is actually eucalyptus, also known as osmanthus fragrans of eucalyptus, not ordinary osmanthus fragrans.
It should be noted that osmanthus fragrans is not toxic, but it cannot be eaten in large quantities for a long time, otherwise it will have side effects on the body. It is suggested that when cooking Osmanthus Jelly, osmanthus glutinous rice lotus root and other delicacies, osmanthus fragrans should be used as an auxiliary material, and a small amount should be added.
Baidu encyclopedia-osmanthus fragrans
People's Health Network-Is Osmanthus fragrans poisonous?