What are the key points of planting potted sweet-scented osmanthus?

Sweet-scented osmanthus is a kind of ornamental tree with high economic price, which is suitable for planting on both sides of the courtyard and road. Although the fragrance of the flowers is faint, they can float far away with the wind. Common sweet-scented osmanthus varieties are Jin Gui, Yin Gui, Dan Gui and four seasons Osmanthus. In addition to open-air planting, potted sweet-scented osmanthus is now very popular. Let's take a look at the main points of planting methods.

I. soil selection

Because sweet-scented osmanthus grows better on acidic soil, potted plants need to configure soil or buy professional nutrient soil. If the configuration, choose rotten leaf soil, garden soil, sand according to 5:3:2 mixed system.

2. Watering essentials

Potted sweet-scented osmanthus should be watered less before sending new shoots and in cloudy and rainy weather. If the summer temperature is high and the water evaporates quickly, you can increase the watering times and choose to water sooner or later. Watering only requires the wettability of the pot soil to be about 50%. If there is too much stagnant water, it is easy to fall flowers during flowering. Usually should pay attention to observation, if there is stagnant water in the basin, need to be poured out immediately to avoid the occurrence of rotten roots.

3. Topdressing

Potted sweet-scented osmanthus has been given enough base fertilizer in the early stage, but can not meet its growth needs, followed by additional topdressing. It is necessary to put different fertilizers according to the different growth periods of sweet-scented osmanthus, such as nitrogen, phosphorus and potassium fertilizer.

Several key periods of fertilization are the budding stage in early March, which requires a large amount of fertilizer to help flower buds grow and promote flowering. In May, the leaves of sweet-scented osmanthus are very mature and need to accumulate more nutrients. It is planned to continue to grow in October, and topdressing nitrogen fertilizer will be needed.

IV. Pruning work

Sweet-scented osmanthus is a kind of flower with developed root system and strong growth ability, especially the adult sweet-scented osmanthus tree, which shoots in spring and autumn every year. In order to make sweet-scented osmanthus trees bloom more, proper pruning can keep their growth in balance. It can be trimmed once after it blossoms in autumn. At other times, the branches and leaves that are too dense are pruned according to the overall growth of sweet-scented osmanthus.

5. Change the basin

Potted sweet-scented osmanthus should choose varieties with compact branches and leaves, short and stout, and thicker trunk. Change the pot every one or two years in spring, which is beneficial to the growth of sweet-scented osmanthus. Every time to change the basin should be handled carefully, do not hurt its roots, so as to avoid the phenomenon of death. After changing the basin, it should be maintained in a cool and ventilated place, and then put in the usual maintenance place when it is restored to vitality.

VI. Pest control

The common diseases and insect pests of sweet-scented osmanthus are anthracnose, gray plaster, brown spot, algal spot, blight, soot, black whitefly, coir moth, shell insect, sweet-scented osmanthus leafhopper, diamondback moth, cicada and so on.