How should azalea be fertilized?

Rhododendron is a flower that does not require big fat. If the fertilizer is applied too much or too thick, it will be detrimental to its growth. But to say this, it is not to say that you should not apply fertilizer, to make it bloom more, to open a lot, or to apply some fertilizer at the right time. Therefore, the experts who cultivated flowers have summed up the experience of 8 words for fertilization: that is, “dry fertilizer is less applied, liquid fertilizer is thinly applied”. This is very appropriate and worthy of reference for flower growers. Under normal circumstances, 1.2 years of seedlings can be used without fertilization, because the fertility contained in the humus soil is sufficient for the growth and development of seedlings. Small plants of 2-3 years old, from late spring or tough summer, can be used once every 10 to 15 days to apply a thin cake of fertilizer or thin water. For plants over 4 years, about 20 grams of dry cake fertilizer can be applied in spring and autumn each year. In mid-June, a quick-acting phosphorus and potassium fertilizer can be applied to promote flower bud differentiation. Fertilization can be stopped after June. After the flower thank you, it is the time when the new shoots grow, you can apply a liquid fertilizer with a slightly higher concentration, but you should not apply too much, and you should not apply fertilizer, otherwise it will damage the root system. Excessive fertilization in the summer will cause the old leaves to fall off and the new leaves to yellow. It is particularly noteworthy that the most common deviation of azaleas planted in the home is not the lack of fertilizer, but the damage caused by excessive fertilization. If there is a situation such as yellowing of the leaves due to excessive fertilizer, stop applying fertilizer immediately, excavate the dry fertilizer, and water the water to wash away the fat in the accumulated soil. After pouring, dispose and ventilate to maintain. Need to rinse 2 times. In this way, after half a year, it can gradually grow normally.

If there is no abnormality in summer, after the beginning of the autumn, the cuckoo will start the second vigorous growth period. In this short time, it can be forced to apply 1-2 times of the thin solution of phosphate fertilizer such as calcium phosphate to supply the plant growth and pregnancy. The need for buds. After each fertilization, water should be poured once every 2 days, and the potting soil should be loosened once to make the basin soil fully ventilated. After winter, as the weather gets colder, the plants stop growing and fertilization should stop immediately. If you do not stop fertilizing, so that the plants sprout young leaves, it will make it difficult for the cuckoo to overwinter, so don't care.