Unveiling the mystery: Common causes of yellowing orchid leaves
Although orchids are commonly considered easy to cultivate, they can pose challenges. One of the most common problems is yellowing leaves. Find out what could be causing this and how to prevent it.
Why does an orchid have yellow leaves?
Orchids are beautiful plants that can surprise with their beauty. However, they can also cause problems, especially when the leaves start to yellow. Overwatering is one of the main causes of this phenomenon. Orchids need a specific amount of water—too much can lead to root rot, ultimately affecting the leaves' condition. It's important to adjust watering to the season and the location where the plant is placed.
This may also be caused by inappropriate soil. Orchids grow best in permeable soil, which allows for proper airflow around the roots. Soil that is too dense retains water and promotes rotting. Therefore, it is recommended to use special orchid soil, which often contains a mix of bark, perlite, and charcoal.
Orchids thrive in bright locations, but too much sunlight can lead to leaf burn. It is recommended to place them in a location with plenty of diffused light, such as on window sills with eastern or northern exposure. If the plant is in too dark a location, the orchid's leaves may begin to yellow and break.
Yellowing leaves can also indicate mistakes in fertilizing the plant. Discoloration of the leaves may signal a deficiency of nutrients such as nitrogen or iron. To prevent deficiencies, it is best to fertilize orchids regularly from April to September.
However, discoloured orchid leaves do not always indicate disease or care errors. Orchid leaves can also yellow due to the natural process of aging. In this case, they should be gently removed.
How to prevent orchid leaves from yellowing?
To avoid problems with yellowing leaves, start by choosing the right pot and soil. Orchid pots should have drainage holes to ensure effective water removal.
Also, pay attention to how you water. Ideally, orchids are watered once a week, and during the winter season, when the plant is resting, even less frequently. It's important to monitor the moisture level of the soil and water the plants when it is dry to a depth of about 2.5 cm. The water should be soft, preferably filtered or distilled, and it's a good idea to submerge the pot in it for about 15 minutes to thoroughly hydrate the roots. Avoid overwatering the orchid, as it can lead to root rot.
Also, ensure the plant receives the right amount of light and fertilize systematically during the period of the greatest need for nutrients. Do not place the plant where it will be exposed to temperature fluctuations or too high temperatures (e.g., near a heater). This can not only lead to yellowing leaves but also inhibit growth and flowering.
