What to Do When Cymbidium goeringii Leaves Turn Yellow and Black, and How to Fertilize Cymbidium goeringii

Cymbidium goeringii, as the name suggests, is a variety of orchid with a long history of cultivation. Although the plant is short and compact, its flowers are elegant and charmingly fragrant, making it deeply loved and sought after by flower enthusiasts. However, growing Cymbidium goeringii requires certain skills; if the method is wrong, it can easily cause the leaves of Cymbidium goeringii to turn yellow and black. So what should be done when this happens?

What to Do When Cymbidium goeringii Leaves Turn Yellow and Black

1. Improper watering causes yellow leaves in Cymbidium goeringii

Watering requires skill. Water according to the dryness of the potting soil, watering moderately and at the right time. Avoid the potting soil being too dry or too wet. Pay attention to the air humidity of the growing environment of Cymbidium goeringii; if the air is too dry, spray water frequently to maintain humidity.

2. Improper fertilizing causes yellow leaves in Cymbidium goeringii

In terms of fertilizing, Cymbidium goeringii requires thin fertilizer applied skillfully. Never apply concentrated fertilizer, heavy fertilizer, or undecomposed liquid fertilizer. On the second day after fertilizing, water once with clear water to dilute the fertilizer and avoid fertilizer damage.

3. Light causes yellow leaves in Cymbidium goeringii

Cymbidium goeringii likes semi-shade. Apart from full-sun care in early spring and winter, at other times place the plant in a well-ventilated spot and avoid direct sunlight.

4. Pests and diseases cause yellow leaves in Cymbidium goeringii

Generally, when pests and diseases appear on Cymbidium goeringii, the effect on the leaves is a gradual process. In the early stage of pest and disease onset, if discovered in time, countermeasures can be taken. Based on the symptoms shown by Cymbidium goeringii, judge which pest or disease it has encountered, and choose the corresponding treatment measures, spraying pesticide or manual control, which will alleviate the yellowing of Cymbidium goeringii leaves.

How to Fertilize Cymbidium goeringii

There are two ways to fertilize it: one through the soil, and the other through the leaves. It grows relatively slowly, so generally only a small amount of fertilizer is needed. In spring and autumn, when it grows relatively quickly, add alum fertilizer water once a week; it must be decomposed. No fertilizer is needed during high temperatures and severe winter. It is best to use organic fertilizer. Fertilizing the leaves can supplement other trace elements; once every half a month during the peak growing season is best. If its leaves are very glossy, it means it is not lacking fertilizer; if they are rather dull, fertilizer needs to be added.

How to Grow Cymbidium goeringii So It Thrives

1. Fertilizer

Although Cymbidium goeringii mud is needed for planting at the beginning, in the long run the nutrients are still insufficient and fertilizer is needed to supplement them. The requirements for fertilizing are rather strict: too much is no good, too little is not enough. First, when buds and leaves have just grown, apply one round of fertilizer mainly based on the N element. Next comes the vigorous growth period, specifically from May to the beginning of autumn, when nitrogen fertilizer is needed once every two weeks or half a month. After that, application can be stopped. However, during this period, after the flowers fade, one supplementary application is needed. In addition, pay attention to the specific time; it is best to do it in the evening.

2. Water

Perhaps some friends have heard the saying “dry orchid, wet chrysanthemum.” So naturally, there cannot be too much water. A small amount of water can make it grow vigorously; too much will not do. Generally, keeping it at two parts dry and eight parts wet is best. This can both meet its water needs and not cause harm. Note: do not water at noon.

3. Light

Although this plant is shade-loving, it will not thrive if kept in too much shade for a long time. In spring and summer, appropriate shading can be provided. However, in autumn and winter, it is best to place it outside to bask in the sun for half a day. This helps the plant grow more vigorously. Also, in order to let all sides receive light evenly, it is best to adjust its orientation after a period of time to avoid differences in growth.

4. Temperature

This aspect is very simple: keeping it within an appropriate range is best. Specifically, it is 20 to 25 degrees, which helps it grow vigorously.

Growth Habits of Cymbidium goeringii

Cymbidium goeringii likes a cool, moist environment with good ventilation, and dislikes extreme heat, dryness, and direct sunlight. For the growing soil of Cymbidium goeringii, it is suitable to choose one that drains well, is rich in humus, and is slightly acidic.

The suitable growing temperature for Cymbidium goeringii is 15℃ to 25℃, of which March to October is 18℃ to 25℃, and October to the following March is 10℃ to 18℃. In winter, as long as the temperature is suitable, it can bloom normally even at 0℃. It can withstand low temperatures of -5℃ to -8℃ at minimum. But the most suitable temperature in winter is 3 to 8℃; keep the potting soil from freezing and place it in a sunny spot by a south-facing window.

As described above, orchids are very precious flowering plants and require a certain amount of patience to care for, so Cymbidium goeringii also needs careful cultivation. Although Cymbidium goeringii is relatively difficult to grow, if cared for well, its ornamental value is extremely high. If placed in a study, office, or living room, it is absolutely elegant and upscale!