How should azaleas be fertilized?

Rhododendron is a kind of flower that does not need big fertilizer. If the fertilizer is applied too much or too thick, it will be harmful to its growth. But this does not mean that it should not be fertilized, but that it should bloom more and more, and that the sky should apply some fertilizer at the right time and in the right amount. Therefore, flower growers summed up eight words of experience in fertilization: "less dry fertilizer, less liquid fertilizer". This is very appropriate and worthy of reference by florists. In general, 1. 2-year-old seedlings do not need to apply fertilizer, because the fertility contained in humus soil is enough to meet the needs of seedling growth and development. For 2-3-year-old plantlets, thin cake fertilizer or thin alum fertilizer and water can be applied every 10-15 days from late spring or tough summer. Plants more than 4 years old can apply about 20 grams of biscuit fertilizer in spring and autumn each year. In the middle of June, available phosphorus and potassium fertilizer can be applied once to promote flower bud differentiation. Fertilization can be stopped after June. After the flower fade, it is the time for the new branch to grow, you can apply a slightly higher concentration of liquid fertilizer, but must not be too thick, do not apply raw fertilizer, otherwise it will damage the root system. Excessive fertilization in summer will make the old leaves fall off and the new ones turn yellow. It is particularly noteworthy that the deviation of azaleas planted at home is not due to lack of fertilizer, but to the damage caused by excessive fertilization. If the leaves are withered and yellow due to excessive fertilizer, the application of fertilizer should be stopped immediately, dry fertilizer should be removed, and more water should be watered to remove the fertilizer in the remaining soil, and some should be washed twice after pouring. In this way, it can grow normally gradually after half a year.

If there is no anomaly in summer, the cuckoo will begin the second period of vigorous growth after the Beginning of Autumn. In this short period of time, the dilute solution of phosphate fertilizer such as calcium superphosphate can be applied 1-2 times to meet the needs of plant growth and bud pregnancy. After each fertilization, fresh water should be irrigated every 2 days, and the basin soil should be planed loose once to make the basin soil fully ventilated. After the beginning of winter, as the weather gets colder and the plants stop growing, fertilization should stop immediately. If you do not stop fertilizing, make the plant sprout tender leaves, but will make it difficult for cuckoos to survive the winter, do not be careless.