1. Avoid the heat In summer, the temperature is high, the water in the basin evaporates quickly, and the leaf water transpiration is also large. At this time, the amount of watering for potted osmanthus will greatly increase. The average daily temperature is above 25℃, watering once a day, preferably in the afternoon; the average daily temperature is 30℃ or above, watering once a day in the morning and evening every day, at noon when the sun is scorching, proper shade, and spray water at the same time to prevent osmanthus leaves Burns. In addition, after the midsummer rainstorm, the water in the basin should be removed in time. Otherwise, it will be sunny after rain and the pot soil will be hot in the sun, which will burn the root system and cause plant death. 2. Fertilization of potted osmanthus Fertilization potted Osmanthus fragrans due to limited potting soil and insufficient nutrients, it is difficult to meet the long-term growth and development of Osmanthus fragrans, so it is necessary to constantly replenish fertilizer. Otherwise, the plants will be thin and weak, the new shoots will not grow well, the flower buds will be few, the flowering will be sparse, or even not flowering, which will seriously affect the ornamental effect. 3. Light Like sunlight, afraid of smoke and dust: Osmanthus likes sunlight, so warm, high temperature, but not cold. During the growth period, it should be maintained in a leeward and sunny place. From June to August, it is the period of osmanthus flower bud differentiation and formation. If enough sunlight and 30-35 degrees high temperature can be provided for about 10 hours a day, it can promote pregnancy buds and increase flowering rate. But in summer, avoid shade to avoid flower bud differentiation. During the overwintering period, if the temperature is lower than 4 degrees and the light is insufficient, it will easily lead to early spring defoliation and affect the flowering of the following year. 4. Potted soil preparation for potted osmanthus Osmanthus fragrans likes to grow in slightly acidic soil with rich humus (PH value is 5.6-6 is suitable). Avoid planting with alkaline soil or heavy clay soil. Cultivate soil can be 4 parts humus soil, 3 parts and 3 parts sandy soil. Add a small amount of fish scales, bone meal, etc. to the decomposed dry manure, or mix it with 5 parts of landscaping, 3 parts of leaf soil, and 2 parts of sandy soil. In order to overcome the alkalinity of soil and water quality, during the growth period, spray with 0.1%-0.2% ferrous sulfate solution once every half a month to make the branches and leaves dark green, which is also conducive to growth. 5. Watering: The principle of watering potted osmanthus is not to dry or water, and to water thoroughly. Recognizing the dryness and wetness of the basin soil can be realized from the soil color and hand feel. Generally, the pot is gray and white. If the pot soil feels hard when pressed with your fingers, it means that the pot soil is dry and needs watering. On the contrary, if the pot soil is brown and black, the pot soil is soft and moist. It is relatively moist and does not require watering. As for the specific amount of watering, it should be decided according to the growth of the plants, the texture and size of the potted container, and especially the changes in weather. 6. The air quality is better Osmanthus likes to be clean, resistant to smoke and dust, and afraid of chlorine. If it grows in a place with air pollution, it will not grow well, the leaves will become smaller, it is easy to fall off, and it is less civilized, and it will not even bloom. Osmanthus seedlings should be planted in a southeast facing position, so that it can receive light to the maximum. Osmanthus fragrans is not tolerant to flooding. The height of the planted osmanthus cannot be lower than the height of the transplanting place, or it can be slightly higher. After planting, fill the soil in the hole firmly, and then water it once. 7. Water in time The frequency of watering the osmanthus depends on the weather and the growth of the plants. Generally, it is watered once every 2-3 days in spring; summer temperature is high and evaporation is large. It is at the stage of Osmanthus fragrans development and flower bud differentiation. Watering once a day; in early and mid-September, the potting soil needs to be kept moist, otherwise it is not easy to bloom. However, during the flowering period, large water cannot be used to prevent flowers from falling. Water should be drained in time on cloudy and rainy days to prevent the accumulation of water from rotten roots. It is advisable to keep the water content of the basin soil around 50% in normal times. Before entering the room in winter, water should be watered once. During the maintenance period, water should be watered once at noon on a sunny day every 10 days, but the water temperature should be close to room temperature. The cultivation method of potted osmanthus 8. Skillful top dressing Osmanthus fragrans like fertilizer, need to strengthen top dressing, apply once every half month from April to May, and apply fertilizer every 7-10 days from June to July. It is applied for the last time in early August, so that the sweet-scented osmanthus not only grows luxuriantly, but also blooms more and fragrantly. You can use decomposed cake fertilizer, chicken, duck and pigeon manure, fish scale water, superphosphate and bone meal, etc. If the fertilizer is insufficient, there will be fewer branches, fewer flowers, and not fragrant. 9. Proper pruning Before transplanting sweet-scented osmanthus seedlings, in order to reduce water evaporation, cut off the lush branches and leaves of sweet-scented osmanthus seedlings; to stimulate rooting, you can also cut off too long roots, but do not damage the main roots. Osmanthus fragrans has a well-developed root system and strong germination ability. The adult osmanthus trees are picked twice a year. Therefore, in order to make it flourish, the physiological balance of reproductive growth and vegetative growth should be maintained, and proper shaping and pruning must be carried out. After the Mid-Autumn Festival, cut off all the extra-long branches that were born in summer and autumn, leaving strong spring branches. Before sprouting in the next spring, cut off the weak branches, dense branches, and diseased branches. In this way, it is not only conducive to ventilation and light transmission, but also can completely concentrate the nutrients on the spring branches and flower buds, creating a good prerequisite for autumn blooming, and it can receive the effect of "several blows". 10. Maintenance management In the maintenance and management, especially in the winter management, if there is a slight mistake, all previous efforts will be lost. There are two main problems in winter management. The first is to ensure the temperature, and the second is to prevent the wind to make it safe to pass the winter. Do not leave the shed too early in the spring. The wind blows too early, the air is dry, and the sweet-scented osmanthus branches, especially the interfaces, will be affected. Ways to open the shed until all open. The cultivation environment of osmanthus seedlings should be ventilated, sunshine should be sufficient, and the soil should be fertile and acidic sandy soil. 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