In summer, Camellia should be placed in a shady and ventilated place from about 8:00 a.m. to about 5:00 p.m. every day. At about 6:00 p.m., the basin should be moved to a place where night dew can be accepted. At the same time, pay attention to let the plant receive the sun's residual light sooner or later.
Water frequently in summer to keep the humidity in the basin. At ordinary times, it can spray water on the leaf surface, basin surface and the surrounding ground, which can not only cool down, but also maintain humidity. In midsummer, water should be controlled to promote the formation of flower bud. It is important to remind you not to use cold water to irrigate the roots of plants directly under high temperature and water loss, so as to avoid damaging the roots.
It is found that the spring shoots of Camellia are too busy, so it is necessary to loosen the soil, cut off part of the root system, reduce the absorption of nutrients, and increase the application of phosphorus and potassium fertilizer in summer. From July to September, it is recommended to spray foliar or pour 0.2% - 0.3% potassium dihydrogen phosphate and boric acid into pot soil, so as to improve the pregnancy rate.
Too many buds will affect the growth of the next year, and the quality of flowering will also decline. Therefore, after August, we should remove the dense bud, abnormal flower bud and corolla flower bud. On the emergence of disease and insect branches, long branches, dense branches should be pruned in time to reduce nutrition consumption, maintain ventilation and light.
The main disease of potted camellia is soot disease, which can be sprayed with 50% carbendazim 500-800 times solution. Can spray once a half month, two to three times can see the efficacy, for insect damage, can be manually brush, or spray with medicine.
