Orchid is today the most popular plant among lovers of indoor floriculture. And this is understandable, because her flowers combine both tenderness and proud splendor.
But, unfortunately, the plants are also sick, and the causes of diseases are different. Why
does an orchid leaf turn yellow? This is the most common question, especially often they are asked beginner growers. There may be several reasons. And you need to disassemble each of them so that your plant always remains healthy.
If you notice the first signs of the disease, then the main thing is to determine why the leaf on the orchid turns yellow. One reason is insufficient lighting. In this case, the leaf begins to turn yellow at the very base and subsequently disappears. I must say that such damage is dangerous for the plant. After all, both the base of the leaf and part of the stem underneath dries. Be sure to cut off the entire damaged sheet and examine the stem itself. It should be green. If it is brown or black, then you still have to cut off the entire top of the plant. Only this will stop damage to the remaining tissues of the flower. Its restoration will depend on the amount of healthy tissue remaining. The more it is left, the faster the orchid will recover.
Fungal disease is another reason why the leaf of an orchid turns yellow. This happens due to improper watering, or rather, due to stagnation of water in the roots of the plant.
You should know that the substrate in which your flower grows should easily pass water through itself and in no case hold it back. Otherwise, the orchids will begin to turn yellow and fall off one by one. Of course, not only the leaf is affected, but also the stem and roots. The first thing to do is to dry the orchid. To do this, it is freed from the substrate, the affected roots are certainly removed. And with bare roots it must be left to dry. At the same time, the plant is treated with antifungal agents (fungicides). Then the flower is planted in a new pot with fresh substrate.
If the leaves of the phalaenopsis orchid turn yellow , then perhaps its roots are “clogged” in a cache-pot. Here it will be enough to remove the pots, replace the substrate and plant the plant in a plastic pot with large holes at the bottom. It is desirable that the pot is transparent, then it is very clearly visible in what condition the roots of the orchid are.
Also, do not forget that flowers are like living things. And the death of leaves in them can occur for natural reasons. It's just that the leaf has ended its life cycle, and for each type of orchid, this happens in different ways. For some, after 5 years, for others, after 3 years, and for others, after only a year. In addition, there are still reasons why the leaf of the orchid turns yellow. This may indicate a lack of potassium and iron. Therefore, from time to time, the plant should be fed fertilizers with a high content of both elements. In this case, water should be used filtered or at least settled.
At home, the Phalaenopsis orchid is most often grown. Why her leaves turn yellow, and how to avoid this, is probably already clear. Do not allow water to enter the base of the sheet. These orchids are watered by immersion in water. Doing this once a week is enough. Change the substrate from time to time. And do not forget that the plant should be in a bright room, but not in direct sunlight.