1. Trim after flower
After the camellia flower is withered, it is necessary to cut off the flower branches that are broken and reduce the nutrient consumption. In addition to sparse branches, cut off the overlapping branches, tangled branches and dead branches, ensure ventilation and ventilation, and prepare for the next round of flowering!
2. Water
Camellia likes to be wet. The water evaporates quickly in summer. We must water more. But it should be noted that when the soil on the basin surface is obviously dry, it should be watered again, and then it should be watered thoroughly. The watering time should be 7-9 a.m. and 18-20 p.m. every day.
3. Light
The temperature is too high in summer, the camellia can't be exposed to the sun for a long time. If the outdoor maintenance is over 30 degrees, it should be shaded. If the indoor maintenance is over 30 degrees, it should be placed at the scattering light place.
4. Fertilization
Camellia is fond of fertilizer. After flowering, it is necessary to apply rotten cake fertilizer water or P-K compound fertilizer every 1 week or so, and apply thin fertilizer frequently. But after summer dormancy, stop fertilizing
1. Soil management
It is better to arrange the soil on the basin surface into an inclined basin surface with high basin edge and slightly concave flower stem base, so as to effectively prevent the soil at the root from drying into a lump and the root can fully absorb water. In rainy days, pour out the water in the basin in time to prevent the water from rotting.
2. Control water properly
Camellia in July will be the second bud differentiation, after the new leaves grow, to the late August, should be appropriate water control, keep the soil slightly dry, which is conducive to promoting the new branches thick, lignification, but also a good bud.
3. Do not move the position often
Often move the flowerpot, change the growth direction and the receiving surface, which is good for other flowers to form a beautiful plant type, but Camellia has poor adaptability, often change its position, easy to grow poorly, withered leaves and fallen leaves, which will hurt the root system, especially in high temperature season.
Common diseases
Anthrax
June to July is the high incidence period of Camellia anthracnose, the infected leaves will appear yellow brown spots, and gradually spread. Once it is found that the diseased leaves should be cut off immediately, spray 600 times of chlorothalonil solution once a week or 1% Bordeaux solution once a half month for 3-4 times in a row.
Root rot disease.
The root rot of Camellia showed that the root rot turned black, the leaves turned yellow and dry, and the flower buds fell. When root rot is found, dig out the plant immediately, cut off the rotten root system, disinfect it with diluted potassium permanganate solution, and replace it with soil.
Common pests
Scale insects, aphids
In hot and humid weather, the branches and leaves of Camellia are easy to parasitize scale insects and aphids. You can use pyrethroids or inhaling insecticides diluted 1000-2000 times to kill them. Spray once a week, and spray water once after spraying.
Spider mite
If there are grayish yellow spots on the leaves, it is necessary to check whether there are red spiders on the back of the leaves in time. To eliminate red spiders, use 40% dicofol emulsion 1000-1500 times, spray the whole plant once a week.