What causes the blackening of the tip of the orchid leaves?
You may not be familiar with the introduction of orchids in the Orchidaceae family. What causes the blackening of the tip of orchid leaves? Let's take a look together.
The blackening of the tip of orchid leaves is also referred to as "burnt tip" by orchid enthusiasts. There are various opinions on the causes of burnt tips in orchids. This article is a summary of the reasons for the blackening of orchid leaves by an experienced orchid grower based on their own experience.
I believe that the main reason for the burnt tip in orchids is caused by the speed of the plant's own metabolism. For example, if the humidity is high, the temperature is suitable, and the growth speed is fast, it could be the reason why orchids do not have burnt tips. However, it is difficult for orchids to avoid burnt tips in the dry climate of the north.
Therefore, the way to avoid burnt tips is to try to keep the roots healthy as much as possible. This can be achieved with Cymbidiums, but it is difficult with Huai orchids because the leaves of Huai orchids are long, and the sap may accumulate harmful substances at the tip of the leaves during circulation, which can lead to burnt tip symptoms over time.
Of course, there are ways to avoid burnt tips in Huai orchids as well, such as using thin fertilizer frequently and not using too much fertilizer, as this may lead to "more haste, less speed." It is best to change the growing medium every year. When changing the growing medium, gently rub the roots under the old seedlings with water to remove harmful salts attached to the root surface, which will help the orchids regain vitality.
If you want to avoid burnt tips in orchids in the greenhouse, you can install a water curtain to increase air humidity, add heating (15-30 degrees Celsius) in winter, and add some chemical elements that stimulate rapid metabolism in orchids. However, this not only goes against the laws of nature but also greatly reduces the orchid's ability to resist adversity.
You can't have your cake and eat it too, haha!
The above tips about what causes the blackening of the tip of orchid leaves are hoped to provide you with some help after reading this article!