What season is the fragrance of osmanthus?

Sweet osmanthus is a kind of sweet osmanthus tree. It is an evergreen tree or shrub of Oleaceae. It is distributed in the north subtropical deciduous and evergreen broad-leaved mixed forest in the Yangtze River basin and its south. It is often used as a landscape tree species. Flowers are valuable spices and food spices. Let's take a look at the season of cinnamon fragrance.

What season is the fragrance of cinnamon?

The fragrance of cinnamon is autumn, and the Gregorian calendar is from September to November. Cinnamon fragrance means that the cinnamon tree is in blossom and the fragrance is ten miles away. Now it describes something as famous and well-known. At the same time, cinnamon opens in September, that is, autumn, so "the season of cinnamon fragrance" refers to autumn, and "cinnamon fragrance" symbolizes autumn.

How many years does cinnamon grow before it blossoms?

The variety of cinnamon is very special and can not be obtained by sowing at present, only grafting or cutting, which determines the flowering time of cinnamon. Grafted cassia can generally blossom within a year, but most of the grafted cassia is used for potted plants and cannot be used for scenic trees. Cutting cassia can generally blossom at the age of four years, which can be used for potted plants and landscape greening.

Culture method of potted Cinnamon

1. Watering: the cassia pot soil should grasp the principle of not drying and watering thoroughly, but spray water on the leaves once a day to spray all the branches and leaves evenly, so that it is appropriate to start dripping water to keep the leaves moist and wash the dust adsorbed on the leaves. After the Qingming Festival, the cinnamon was moved to the open air and watered once. It must be watered in the morning and evening in summer and around noon in winter, so that the water temperature is close to the soil temperature, so as to avoid sudden cold and heat, and pay attention to no stagnant water. Keep the basin soil moist in winter.

2. Fertilization: nitrogen fertilizer can be applied twice to promote the growth of branches and leaves during shoot shooting, and phosphorus fertilizer can be applied mainly before flower bud differentiation and flowering. After the cassia was moved to the open air in spring, it began to pour cooked thin bean cakes, sesame sauce, fishy water, etc., once every half month, and once a week from the end of May to before flowering, the concentration of fertilizer and water gradually increased, and 0.5% potassium dihydrogen phosphate solution was applied every half month from July to August. Apply a light fertilizer after flowering so as not to cause autumn branches. It is necessary to apply more organic fertilizer and phosphorus and potassium fertilizer in winter. Before applying fertilizer, the basin soil should be slightly drier, and the soil should be loosened first so that the fertilizer can be absorbed, and water should be watered once the next day.

3. Pour the pot: pour the pot and change the soil every 2 ~ 3 years, cut off part of the old and withered roots, and remove part of the old soil with bamboo sticks. The soil ratio of potted cassia is not very strict, and it can be made of garden soil, barnyard manure and river sand. Water thoroughly after planting in spring, and then move to the shade for about 10 days to make it "take the basin". Do not apply fertilizer during the period of taking the pot, and water and fertilize only after the growth is restored and new leaves grow. The texture of flowerpot is better with purple sand pottery or glazed pottery, and the color is better with purple or ochre, which can be in sharp contrast with the color of flowers and leaves to increase its ornamental effect.

4. Pruning: cinnamon styling is better made into curved dry type, oblique dry type or floating type, plastic shaping generally adopts the combination of climbing and pruning, and the trunk can be tied into curved dry type or oblique dry type. It should be carried out after autumn. For plants with high growth, empty lower branches and poor tree shape, the whole top branches can be cut off at 2pm 3 or 3pm 4. For "top heavy" plants, the upper too dense branches should be cut off, leaving only the lower smaller branches, and thinning the plants with too dense branches. After flowering, a pruning should be carried out to cut off the overgrown branches, withered branches, disease and insect branches, dense and thin branches.

5. Overwintering: the room temperature should be kept at 5 ℃ and the relative humidity at 50%. Winter cold indoor light should be good, especially before the early spring buds begin to sprout, more sunny is required. In the spring of the following year, after Grain Rain in North China (before and after the sting in the Huang-Huai River Basin), potted cinnamon was arranged to go out. After coming out of the room, first concentrate on the outdoor leeward and sunny place, and then spread it into a row, so that it gradually adapt to the external environment.

6. Diseases: the common diseases of Dangui include leaf spot, coal pollution, algal spot, root rot, iron deficiency and so on. Leaf spot, coal pollution and algal spot can be sprayed with 0.5 Bordeaux solution or 5% carbendazim 500-1000-fold solution to control root rot. Root rot control should pay attention to keep the soil loose and permeable, not stagnant water. For example, when root rot is caused by fungi, 200-fold solution of ammonium benzoate can be used to irrigate the root.

7. Insect pests: the common pests in Dangui are leaf wasps, whitefly, mites, white scale, yellow moth and so on. Leaf wasps, whitefly and mites can be sprayed with 40% dimethoate 1500-3000 times solution. In addition to manual brushing, the scale can be sprayed with 40% omethoate 1000 times or 40% fenitrothion 500 times solution in the first and second generation nymphs.