What on earth is the yellowing of orchid leaves?

It is true that orchids are not easy to maintain, and it is common to accidentally raise them to death. It is even more common for the leaf to turn yellow or the tail of the leaf to become zoom. If this happens, you should rule out the reasons one by one to see which aspects of the maintenance habits may be wrong, and then quickly correct them!

1. It's not watered properly. Watering is really the most basic and troublesome problem in the process of growing flowers. What exactly is appropriate? Orchids like to be wet, and it must be inappropriate to wait until the soil is dry. When you see the soil is too dry, you can water it. Another situation may be on the contrary, that is, too much water, which requires the addition of some coarse-grained matrix such as perlite or vermiculite to help drainage.

two。 Improper lighting. Orchids like shade, exposure is definitely not good, especially in the summer afternoon this kind of sunshine, basking it in the afternoon is definitely the rhythm of hanging orchids. Orchids should be planted in a cool place, direct sunlight must be avoided, even if it is scattered sunlight is not good, such as on the balcony to make a curtain or shade net.

3. The fertilizer and water are not suitable. Some people are too eager to see it blossom. Orchids need to be fertilized, but the concentration of fertilizer to orchids should be low, which is about half of that of other plants. So here is often the case that the leaves turn yellow or zoom after fertilization. The concentration of fertilizer is reduced by half, and if liquid fertilizer is applied, undercooked liquid fertilizer can not be used.

4. The soil is inappropriate. Orchids like acidic soil, if orchids do not change soil for a long time, the soil in the flowerpot may absorb a lot of nutrients, which will cause nutrient deficiency for a long time, and another may be due to changes in soil acidity and alkalinity due to changes in nutrients. At this time, you can pour some diluted water of ferrous sulfate or aluminum sulfate into the flowerpot to increase the acidity of the soil.

5. Disease and insect damage. Orchids may also be caused by illness leading to yellow leaves, spraying carbendazim or flower protection and other drugs to prevent. On the other hand, it is necessary to increase the ventilation of the conservation environment and reduce the probability of orchid infection. In particular, to avoid damp + muggy situation.