Why Is My Orchid Stem Turning Yellow?

Orchids are colourful and fragrant flowering plants of the Orchidaceae family. They are prevalent house plants as they are handy and quickly grown; they require less time and effort while taking care of them. Orchids are appealing to the eyes and add aesthetic vibes to your house.

Irrespective of the fact that orchids are grown easily and require minimal care, people often see changes in the color of the stem or leaves of the plant. If you do are wondering about the question, why are my orchid stamps turning yellow? You are at the right place. Here in this article, we will discuss the various factors that could be the reasons behind the changes in your orchid plant’s color. We will also talk about the necessary precautions you must take to prevent your orchids from turning yellow.

Also Read: How to Propagate and Care for Epiphyllum?

How to solve the problems of indoor gardeners?

Indoor gardeners often feel frustrated by the orchid stems or leaves turning yellow. Most of the time, this process is a natural cycle of the plant; you don’t need to roast your head about it. It does not necessarily suggest that there is something wrong with your plant. Ultimately the yellow parts get dry and drop away or fall off from your plant and are replaced by new flowers or leaves that appear in their place. If the yellow stems or leaves do not shed, it might bebecause of a few other ordinary reasons.

Preventing indoor orchids?

Orchids can also be planted indoors as they do not require direct sunlight to grow.

Even after taking all the necessary measures, if you notice some sports on your plant, do not panic or get frustrated as this might be a part of the natural life cycle of your plant. Eventually, the parts which have turned yellow are shredded by the orchid, and leaves and flowers grow.

Always keep in mind that too much of anything, be it sunlight, fertilizers, or water, is not good for your plant health, and therefore avoid using these in excess. Let us discuss them in detail.

Why Are My Orchid Stem Turning Yellow?

Here is a list of a few infections and diseases that all the orchids can have

Orchids are a diverse family of plants and come in different colors, fragrances, and growth forms. The most common diseases that orchids catch are usually fungal. Orchid plants also get infected if excess moisture stays on the leaves or flowers. Continue reading for some more information on common orchid diseases and treatments.

#1 Bacterial soft and Brown rot

Symptoms- Small water-soaked spots that are often surrounded by yellow halos appearing on parts of the leaves or the entire leaves that make stems yellow. This infection spreads quickly all over the leaves and also has chances of reaching the roots. It is so rapid that the whole plant might get rotten in two or three days.

Keep a check on such sports and take precautionary measures to protect the health of your orchid plant. The bacterial soft or Brown rot has a water-soaked appearance and also has a foul odor. If unchecked, the spot will first turn yellow then eventually become reddish brown and sunken.

Treatment- You must immediately remove the infected part of the leaf or the whole leaf. Don’t use your everyday scissors for this purpose as they might have germs on them. Always use a sterile cutting instrument once the infected part is removed, spray bactericides containing quaternary ammonium products like physical or copper compounds. This will help in disinfecting your plant.

Prevention- The bacterial soft appears if your plant remains moist for most parts of the day. So avoid spraying too much water on the plant. Keep the leaves dry and ensure proper air circulation. Also, disinfect your plant periodically with products that contain copper compounds.

Also Read: Tomato Seedlings Stopped Growing

#2 Root rot

Symptoms- Root rot occurs when the pot in which you have planted you’d orchids do not have proper drainage holes. Roots also get rotten if you overwater your plant. Root rot causes the origins of the plant to die, and this infection spreads at a very high pace. Root rot could lead to the complete dying of your plant if it is unchecked.

Usually, the early symptoms of root rot are unnoticeable because their roots are under the soil. Nonetheless, if you notice your plant turning yellow from the bottom, always check the roots first.

Treatment– Remove the infected roots of the plant using sterile scissors. Spray fungicide on the remaining parts of the root. Disinfect your plant and also ensure that you do not over-water your plants again.

Prevention- Make sure you choose apart with proper drainage holes. Do not overwater your plants, and keep a check on the conditions of the roots constantly.

Also Read: How to Grow Taro Root in Containers?

#3 Orchid leaf fungal spot

Symptoms- This fungal disease begins at the tip of the leaves and slowly proceeds towards the base. The infected part of the leaf turns Brown and appears sunken while the remaining part looks normal. The symptoms of this fungal infection are visible to the eyes and should not be ignored.

Treatment- Remove the infected part of the leaf or entire leaf and spray with a suitable fungicide.

Prevention- Proper sanitation, good air circulation, and increased light may reduce the chances of your plant being infected by this disease.

Also Read: White Lines on Tomato Leaves

#4 Bacterial brown spot

Symptoms- Blister-like Brown spots appearing anywhere on your plant indicate this disease. Bacterial Brown spots are a severe disease for your plant. A yellowish or pale green halo may also surround these parts. This disease is most prevalent in warmer weather. The bacterial Brown spot spreads rapidly, and if it is left untreated, the plant will die.

Treatment- Immediately remove the parts of the plant that have been infected using a sterile cutting tool. Spray bactericides to disinfect your plant and to get rid of any infection remaining in the plant.

Prevention- Since the disease spreads easily in high temperatures, try to reduce the temperature and humidity and also have a proper circulation of air where you have kept your plant.

Prevention is always better than cure. So let us have a look at a few common causes that lead to infection and diseases of your plant.

Also Read: Why My Snake Plant is Dying?

Direct sunlight :

Orchids are tropical plants that do not need exposure to direct sunlight. By very nature, orchids need only direct sunlight to be able to grow. Orchids usually grow in tropical areas where they receive indirect sunlight coming through the canopy’s of trees. This is a favorable condition for orchids. If you have kept your plant at a place where it receives direct sunlight, the health of the plant will deteriorate. The leaves of the orchid plant might turn brown, and the whole plant is susceptible to being damaged. Excessive exposure to sunlight might also kill your plant.

Check this out: Growing Perpetual Spinach at Home

How to Know If Your Plant is Receiving Excess Sunlight?

Be vigilant about your plant health and always keep checking for signs of infections and damages. If you notice the leaves of your plant are drying out or turning brown, you might consider changing their position. Do not keep the orchid plant at a place in your house that receives direct sunlight. Instead, keep it somewhere where the plant might receive indirect sunlight, which will not damage the plant’s health. It is also advisable to change the position of your plant depending on the seasons.

Correct range of temperature for the plant :

This point is an extension of the point mentioned above. The favorable range of temperature for an orchid plant to grow is between 60 to 80 degrees. If your plant stays in higher temperatures than the favorable temperature, the stress on the plant increases, and therefore it starts to change color and turns yellow. It might also start shedding its leaves or flowers.

How to keep a check on the temperature of the plant?

You can simply use a thermometer to check the temperature of the plant. If you notice that the temperatures are higher than the reasonable temperatures, do not waste any time and keep your plant at a place where it can actually have a suitable environment for it to grow.

Overwatering :

All of us wish to be good caretakers ofour plant and provide them suitable environmental conditions to grow and remain healthy. More often than not, in the process of trying to look after our plants, we keep watering them constantly, and instead of helping our plants grow, we become the cause of its damage.

Note- Overwatering deteriorates the health of our plant and can also kill the plant

Orchid leaves or stems start turning yellow, and water-soaked patches appear on the plant. We must not ignore these signs and should avoid overwatering our plants.

Fertilization :

It is advised to us that we add fertilizers to the soil so that the plant receives the necessary nutrients to grow. In an attempt to improve plant health, we keep adding fertilizers without taking note of the right amount of fertilization required for our plants.

If we add excess fertilizers to the soil, it becomes extremely rich in nutrients like copper, calcium, manganese, and zinc.

While it is beneficial for plants to have nutrients, too much of it is unhealthy. The extra nutrients block the way for orchids to receive iron contents. This leads to a situation known as chlorosis.

The iron deficiency does not let the plant thrive, and as a result, it catches infections and diseases, which, if left untreated, end up killing the plant.

 It is important to understand that too much or too little fertilization damages the orchid plant.

Right amount of fertilization

Ensuring our plants get the right amount of fertilization is not a very difficult task. We should follow a pattern of adding fertilizers to our soil, like once in two weeks or once in three weeks. This will ensure that there is no deficiency of nutrients in the soil and make sure that our plants do not receive extra nutrients, which leads to their deterioration in health.

Hard water

Most of us use tap water or running water to water our plants. Tap water might contain excess chlorine, which is not good for plant health. If we keep watering our plants with hard water, the magnesium and calcium content in the soil increases, and in turn, it damages the plant.

To avoid such a situation check the content of chlorine and other minerals in the water which you use to water your plants. Also, make sure that you do not overwater your plants as it increases the stress on the plant.


Orchids are beautiful plants that are visually appealing to the eyes and add an aesthetic dimension to your house. If you pay attention to their health, they grow easily and can be used to decorate your home.

If you keep the points mentioned in this article in your mind and accordingly take good care of your plant, you should not face any difficulty growing orchids – indoors or outdoors.