Soil conditions are very important for the protection of laurel. Osmanthus fragrans is suitable for growing in slightly acidic soil with good drainage. We need to add appropriate amount of perlite and some decomposed organic fertilizer when preparing soil, so as to ensure the normal growth of osmanthus fragrans. Osmanthus fragrans likes light, so it must be maintained in a sunny place at ordinary times, so as to grow vigorously and have a stronger fragrance. Its growth temperature is generally controlled at 15 to 30 degrees. When the temperature is too low in winter, warm-keeping measures must be taken to avoid frostbite of its plants.
Osmanthus fragrans should be watered appropriately at ordinary times to keep the soil slightly moist. You can water it once every two or three days in spring and autumn, once every two days in summer and once every four or five days in winter. Pay attention to control the amount of water when watering. If the soil is too wet, it will affect its normal growth. In the process of maintenance, laurel trees should be pruned in time. During its growing period, some branches, diseased branches and dead branches that grow too long should be pruned in time to ensure that its nutrition will not leak out.
While maintaining laurel, we should also pay attention to the protection of pests and diseases. The main diseases are brown spot and anthracnose. When brown spot occurs, steel sulfate and lime water solution can be used for prevention and control, and when anthrax occurs, 25% carbomer solution can be used for prevention and control. The main pests of cinnamon are generally white scale insects, red spiders and so on. 80% dichlorvos solution can be sprayed when the white scale insect comes on. When the red spider is sick, it can be killed by spraying 40% dimethoate emulsion once a week for three or four times in a row.