Why don't sweet-scented osmanthus trees blossom?

Why don't sweet-scented osmanthus trees blossom? What is it caused by? How to solve in recent years roadside residential areas, government organs, enterprises and institutions have planted a lot of large sweet-scented osmanthus trees, blooming season, it is supposed to be fragrant all over the city, but it is difficult to smell sweet-scented osmanthus. Why can't you smell the fragrance only when you see the flowers? Some people say that tall buildings in the city block the sun, and some people say that car exhaust pollutes the environment, but even in places where there is plenty of sunshine and few car exhaust pollution, sweet-scented osmanthus is not fragrant. Why?. It is mainly the relationship between the varieties of sweet-scented osmanthus. In recent years, what has been planted in large quantities is not the eight laurel with strong flower scent, but the four seasons osmanthus with little flowering and little aroma. There are many kinds of sweet-scented osmanthus, such as Jin Gui, Yin Gui, Dan Gui, Siji Gui and so on. Their characteristics and uses are different. First, the golden sweet-scented osmanthus, rich aroma, on the market as spices for sales to make cakes, cooking desserts like this. Most of what used to be planted in the yard was like this. The cassia tree is tall and erect, up to more than 5 meters. The branches and leaves are dense, the branches are stout, the leaves are wavy and uneven, the leaves are thick, green and glossy. Second, sweet-scented osmanthus is milky white and sweet-smelling. The branches and leaves are thinner than cinnamon, and the leaves are smaller and thinner. Third, sweet-scented osmanthus orange or orange. The fragrance is slightly lighter than that of Jin Gui. The branches are dense, the branches are rough, the leaves are dark green and the leaves are thick and hard. Four seasons sweet-scented osmanthus white or white slightly yellow, the fragrance is very light, in addition to severe cold and heat, the rest of the time can open a small number of flowers. The flower yield is small, the plant is tall and clumpy, the branch is stout and dense, and the growth is exuberant. The leaf ellipse is spreading, the main lateral vein angle is big, becomes 60 degrees angle, the leaf color is light green or yellowish. There are more in the south, so it is suitable for potted plants. There are many varieties of four seasons cinnamon. The treasures often seen in advertisements are "cinnamon fragrance". The flowers are golden and fragrant, and they are mainly produced in Sichuan and other places. Sweet-scented osmanthus in the Mid-Autumn Festival in August. The cinnamon we are talking about should mainly refer to Jin Gui, not the "four Seasons Gui", which blossoms sporadically and has little fragrance throughout the year. The owner unit requires that the plant should also be the fragrant osmanthus, rather than the four seasons without any aroma. Because the sweet-scented osmanthus flower is small and inconspicuous, it has little ornamental value, but the fragrance is unique. In recent years, most of the plants planted in Wenzhou are "four Seasons Gui" with little scent of flowers, rather than "August Gui". When you expect to smell sweet-scented osmanthus in the Mid-Autumn Festival in August, there is no fragrance to smell. Why do you plant cinnamon? Because the price of Zhejiang four Seasons Cinnamon is only about half of that of August laurel. The landscaping design book is only marked "sweet-scented osmanthus", but not the name of the variety. The price difference is double, why the construction contractor doesn't make a profit. Sweet-scented osmanthus trees are more expensive, and the planted osmanthus can not be dug up and replaced, which can only become a pity, but in the future, such things should be avoided as far as possible, how to avoid them? The greening unit should clearly put forward the variety requirements such as Jin Gui, the design unit should clearly mark the name of the variety, and the project cost budget and final accounts should be priced according to the name of the variety, so that the loophole of mixing fish eyes with pearls will naturally be plugged. The species of greening trees are clearly divided, and the design and construction units choose tree species according to the needs of customers and price according to quality. The way to make sweet-scented osmanthus trees bloom early what are the diseases and insect pests of sweet-scented osmanthus trees? click to get more sweet-scented osmanthus planting techniques.