Common causes of yellow leaves on monstera plants and how to address them

If you are a houseplant enthusiast, you may have encountered the issue of your Monstera leaves turning yellow. This can be quite concerning, as healthy green leaves are a sign of a thriving plant. Understanding the causes and solutions for yellowing leaves is essential to ensure the well-being of your Monstera.

One of the most common reasons for yellowing leaves in Monstera plants is improper potting. These plants have long, sprawling stems that need support in order to grow upright. If the pot is too small or not well-draining, the roots may become bound and unable to absorb the necessary nutrients. This can lead to yellowing and other signs of distress.

During the growing season, Monsteras require more water. However, overwatering can also cause yellowing leaves. If the soil is too wet for too long, the roots cannot take in enough oxygen, causing them to rot. On the other hand, if the plant is underwatered, the soil may become too dry and compacted, also leading to yellowing leaves.

Another potential cause of yellowing leaves in Monsteras is inadequate sunlight. These plants thrive in bright, indirect light, and placing them in a dark or shaded environment can result in yellowing leaves. On the other hand, exposing them to too much direct sunlight can burn their leaves.

Pests and diseases can also contribute to yellowing leaves. Insects like spider mites and aphids can infest Monsteras and cause damage. Additionally, fungal diseases can attack the roots and leaves, leading to yellowing and other symptoms. Regularly inspecting your plant for signs of pests and using natural pest control methods can help prevent these issues.

Another factor to consider when dealing with yellowing leaves in Monsteras is humidity. These plants prefer higher humidity levels, and dry air can cause their leaves to yellow. Placing the plant near windows or using a humidifier can help create a more suitable environment for your Monstera.

If your Monstera’s leaves are turning yellow, it may be time to consider repotting. Monsteras have dense root systems, and if the roots become bound, they may not be able to uptake nutrients properly. Repotting the plant into a larger pot with well-draining soil can provide a fresh start and give the roots more room to grow.

In conclusion, yellowing leaves in Monsteras can be caused by a variety of factors, including improper potting, over or underwatering, inadequate sunlight, pests, diseases, and low humidity. By understanding the causes and taking appropriate measures, you can help your Monstera thrive and prevent further leaf yellowing.

Why are my monstera leaves turning yellow

If you have a swiss cheese plant (Monstera deliciosa) and notice that its leaves are turning yellow, there are several possible causes to consider. Understanding these causes can help you address the issue and bring your plant back to health.

1. Light levels

Monstera plants thrive in bright, indirect light. If they are not getting enough light, their leaves may start to turn yellow. Try moving your plant to a brighter location, but make sure to keep it away from direct sunlight, as this can scorch the leaves.

2. Watering

Over- or underwatering can also cause monstera leaves to turn yellow. It’s important to water your plant when the top inch of soil feels dry, but be careful not to overwater. Make sure your plant is in a well-draining potting mix, as sitting in water can lead to root rot and yellowing leaves.

3. Humidity

Monstera plants prefer higher humidity levels. If the air in your environment is too dry, this can cause the leaves to dry out and turn yellow. You can increase humidity by using a humidifier or placing a tray of water near the plant. Misting the leaves can also help.

4. Pruning

Yellowing leaves may be a sign that your monstera plant needs pruning. If the leaves are turning yellow and you notice the stems are becoming leggy or sparse, it could be a sign that the plant needs a trim. Pruning can help stimulate new growth and improve the overall appearance of the plant.

5. Pot size

If your monstera plant is in a pot that is too small, the roots may become bound and the plant may not receive enough nutrients, leading to yellowing leaves. Consider repotting your plant into a larger container to give its roots more room to grow.

6. Soil condition

Problems with the soil can also cause monstera leaves to turn yellow. If the soil is not well-draining or if it holds too much water, the roots may rot and the leaves may yellow. Make sure to use a high-quality potting mix that provides adequate drainage.

7. Temperature changes

Monstera plants prefer temperatures between 65-85 degrees Fahrenheit (18-29 degrees Celsius). Exposure to cold temperatures or sudden temperature changes can cause stress and yellowing of the leaves. Make sure to keep your plant in a consistent temperature environment.

8. Pests or fungal problems

Pests, such as spider mites or aphids, can cause damage to monstera leaves, resulting in yellowing. Additionally, fungal diseases, like root rot or leaf spot, can cause yellow patches on the leaves. Inspect your plant for any signs of pests or fungal issues and take appropriate measures to address the problem.

By taking these points into consideration, you can better understand the potential causes of yellowing monstera leaves and take the necessary steps to prevent or alleviate the problem. Remember that monstera plants can be difficult to support in indoor environments, but with proper care, they can thrive and provide a beautiful addition to your space.

1. Make sure to balance watering

One of the most common reasons why Monsteras develop yellow leaves is due to improper watering. Finding the right balance is important for the health of your plant.

Monsteras thrive in environments with moderate to high humidity. Due to their Swiss cheese-like leaves and stems, they are known to lose moisture quickly. Over-watering can lead to root rot and yellowing leaves, while under-watering can cause wilting and dryness.

Here are some signs that your Monstera may be getting too much water:

• Yellowing leaves that turn mushy and easily break apart
• Roots that appear brown, mushy, or waterlogged

On the other hand, signs of under-watering include:

• Yellowing leaves that turn crispy and dry
• Wilting and drooping stems

When watering your Monstera, it’s important to use well-draining potting soil. Monsteras prefer a nutrient-dense mix but with good drainage. This allows the roots to get the necessary water while preventing them from waterlogging.

An easy way to check if your Monstera needs watering is by sticking your finger about an inch into the soil. If it feels dry, it’s time to water. However, if it still feels moist, it’s best to wait a little longer before watering again.

While Monsteras enjoy humidity, they also need to dry out between waterings. This prevents root rot and allows the plant to absorb oxygen. To increase humidity levels, you can mist the leaves or place a tray of water near the plant. However, make sure not to overdo it, as excessive moisture can attract pests and fungal problems.

Another key aspect of watering Monsteras is to avoid standing water in their pot or saucer. If any excess water collects in the saucer, make sure to empty it to prevent the roots from sitting in water.

Lastly, as Monsteras are fast-growing plants, they may require more water and nutrients during the growing season. This is typically during spring and summer, when the plant is actively growing. Adjust your watering schedule accordingly during these periods.

By balancing watering properly, you can help prevent yellowing leaves and keep your Monstera thriving.

2 Don’t expose them to too much light

One known and often overlooked problem that can cause Monsteras’ leaves to turn yellow is exposure to too much light. While Monsteras do need bright indirect light to thrive, too much direct sunlight can burn their leaves and cause them to turn yellow. On the other hand, insufficient light can also cause yellowing leaves, so finding the right balance is important.

One point to consider is that as Monsteras grow larger, they will need more light than when they were smaller. So if your Monstera is growing and filling out the space, it may be time to find a new location with more light.

To help prevent yellowing leaves caused by too much light, you can try moving your Monstera to a location with indirect sunlight. Placing it near a north or east-facing window is often the best idea. These windows generally provide enough light without subjecting the plant to direct sunlight which can be too intense.

If you notice that the leaves are turning yellow, you may want to consider adjusting the light levels. Move the plant to a spot where it receives less direct light or filter the light using sheer curtains or blinds. Doing so can help prevent the leaves from burning and turning yellow.

Furthermore, Room temperature water is best for watering Monsteras. Watering is an important aspect of Monstera care, as over or under watering can contribute to yellowing leaves. It’s best to allow the top inch or two of soil to dry out before watering again.

When repotting, be sure to use a well-draining potting soil that will allow excess water to escape. Monsteras are often potted in dense soil mixes, which can retain too much moisture and lead to overwatering. Remember to repot your Monstera when it outgrows its pot or when the soil becomes compacted.

To rule out other causes for yellow leaves, make sure your Monstera is well-supported by placing it in a stable and appropriately sized pot. Insufficient support can lead to stress on the plant and yellowing leaves.

Lastly, pests can also be a problem for indoor plants. Inspect your Monstera for signs of pests such as mealybugs or spider mites. These pests can feed on the leaves and cause them to turn yellow. If you find any pests, consider removing them manually or treating the plant with a gentle insecticide.

By being mindful of these factors and providing your Monstera with the right conditions, you can help prevent yellowing leaves and keep your plant thriving.

3 Ensure the right humidity

Proper humidity levels are crucial for the health and well-being of your Monstera plant. The humidity level in your home can have a significant impact on the overall health of your houseplant. If the humidity levels are too low or too high, it can cause the leaves of your Monstera to turn yellow.

Monstera plants prefer a humid environment with a humidity level of around 60-70%. When the humidity levels are too low, the moisture in the soil and air around the plant can quickly evaporate, leaving the plant dehydrated. This can lead to yellowing leaves.

To ensure the right humidity for your Monstera, you can take a few simple steps:

1. Mist the leaves

Misting the leaves of your Monstera plant with water can help increase the humidity levels around the plant. Use a spray bottle to mist the leaves regularly, especially during dry periods or in dry indoor environments.

2. Use a humidifier

An effective way to maintain the right humidity level for your Monstera is by using a humidifier. A humidifier increases the moisture in the air and helps create a more humid environment, especially during dry seasons or in regions with low humidity levels.

3. Cluster plants together

Grouping your Monstera plants together can create a mini greenhouse effect, increasing the moisture in the air around them. As the plants transpire, they release moisture into the surrounding air, creating a more humid environment.

4. Place the pot on a tray of water

Another simple method to increase humidity around your Monstera plants is by placing the pot on a tray of water. As the water slowly evaporates, it adds moisture to the air surrounding the plant.

By following these steps to ensure the right humidity for your Monstera, you can help prevent the leaves from turning yellow and create the optimal growing conditions for your houseplant to thrive.

4 Use nutrient dense soil or fertilizer

If you notice that your Monstera leaves are turning yellow, one possible reason could be that the plant is not receiving enough nutrients. In this case, using nutrient dense soil or fertilizer can help alleviate the issue.

When it comes to soil for Monsteras, it is best to opt for a natural and nutrient dense mixture. Here are a few options to consider:

1. Swiss Cheese Plant Soil Mix

A popular choice for Monsteras is a soil mix that is specifically formulated for Swiss Cheese plants. This type of soil is typically well-draining and provides the necessary nutrients for the plant’s growth and development.

2. Nutrient-rich Potting Soil

If you prefer to make your own soil mix, you can start with a base of nutrient-rich potting soil. Make sure to use a well-balanced potting mix that contains organic matter to provide essential nutrients for your Monstera.

Regardless of the soil you choose, it is important to ensure that the potting mix is loose and well-draining. This will help prevent water from sitting in the roots, which can lead to root rot and yellowing leaves.

In addition to using nutrient dense soil, you can also consider fertilizing your Monstera. Fertilizer provides an extra boost of nutrients that may be lacking in the soil. However, it is important to use fertilizer in moderation and to follow the instructions on the packaging.

When fertilizing your Monstera, it is best to use a balanced houseplant fertilizer with equal amounts of nitrogen, phosphorus, and potassium. Apply the fertilizer according to the instructions provided, making sure not to over-fertilize as this can cause damage to the plant.

It is also important to note that Monsteras are known to be heavy feeders, particularly during the growing season. Therefore, it may be necessary to fertilize more frequently during this time.

Remember, when using nutrient dense soil or fertilizer, it is important to monitor your Monstera closely. If the yellowing leaves persist or worsen, it may indicate an underlying problem that needs further attention.

Overall, by providing your Monstera with nutrient dense soil and occasional fertilization, you can help support its growth and prevent yellowing leaves.

5 Treat houseplant pests

Pests can be a common problem when it comes to houseplants. They can cause damage to the leaves, stems, and roots of your plants, making it difficult for them to thrive. Here are five common pests that can affect your houseplants and how to treat them:

1. Spider mites: Spider mites are tiny pests that often go unnoticed until the leaves of your plants start turning yellow. To treat spider mites, you can prune away any affected leaves and support your plant with proper care. Increasing the humidity around your plant and using a gentle spray of water can help prevent spider mites from spreading.

2. Aphids: Aphids are small insects that can suck the sap out of the leaves and stems of your plants. To treat aphids, you can remove them by hand or use a gentle spray of water to wash them away. Applying insecticidal soap or neem oil to your plants can also help get rid of aphids.

3. Fungus gnats: Fungus gnats are small flies that are often seen flying around the soil of indoor plants. They are attracted to moist soil and can cause damage to the roots of your plants. To treat fungus gnats, allow the soil to dry out between waterings and avoid overwatering your plants. Using yellow sticky traps can also help control the population of fungus gnats.

4. Scale insects: Scale insects are small pests that attach themselves to the stems and leaves of your plants. They can be difficult to remove and often require manual removal. Using a cotton swab soaked in rubbing alcohol, gently remove the scale insects from your plant. If the infestation is severe, you may need to repot your plant and remove any affected parts.

5. Mealybugs: Mealybugs are small, fluffy insects that can cause damage to your plants by feeding on their sap. To treat a mealybug infestation, you can remove them by hand or use a cotton swab soaked in rubbing alcohol to gently remove them. Applying insecticidal soap or neem oil to your plants can also help get rid of mealybugs.

It’s important to remember that prevention is the best way to avoid houseplant pests. Making sure your plants are in a bright location, properly watering them, and keeping an eye out for any changes in their appearance can help prevent pests from infesting your plants. Additionally, repotting your plants regularly, providing proper nutrient levels, and maintaining humidity levels will help keep your houseplants healthy and thriving.

6 Use the right pot size

A common reason for yellow leaves on a monstera plant can be the use of the wrong pot size. The size of the pot plays an important role in the overall health and growth of your plant.

A pot that is too small may not provide enough space for the roots to grow. This can lead to the roots becoming bound or crowded, causing stress to the plant and resulting in yellowing leaves.

On the other hand, a pot that is too large can lead to overwatering and poor drainage. Excess water can accumulate in the pot, leading to root rot and fungal problems. The excess soil can also hold too much moisture, which can prevent oxygen from reaching the roots and suffocate them.

When choosing a pot size for your monstera, it’s important to consider the current size of the plant and its root system. A general guideline is to choose a pot that is 2-4 inches larger in diameter than the current one.

Fill the new pot with a well-draining potting mix that is light and airy. Avoid using dense or heavy soil, as it can retain too much moisture and increase the risk of root rot.

During the repotting process, be careful not to damage the roots. Gently loosen the root ball and remove any dead or rotting roots. Place the plant in the new pot and fill the remaining space with fresh potting mix.

After repotting, make sure to water the plant well and provide it with the appropriate light and humidity levels for optimal growth. Keep an eye on the leaves and watch for any signs of yellowing or other problems.

By using the right pot size and ensuring proper drainage, you can help your monstera thrive and prevent yellowing leaves caused by root issues.

7 Consider the age of your plant

One factor to consider when your Monstera leaves are turning yellow is the age of your plant. Young Monstera plants may naturally have some yellow leaves, especially towards the bottom of the plant. These lower leaves may turn yellow and eventually fall off as the plant grows and matures.

Keep in mind that yellowing leaves are normal if they are the oldest leaves, as the plant is using them to redirect energy towards newer growth. As long as the rest of the plant looks healthy and is thriving, there is likely nothing to worry about.

However, if the yellowing leaves are not the oldest leaves but are instead located closer to the top or in the middle of the plant, there may be an underlying issue causing the discoloration.

If you notice that only the tips of the leaves are turning yellow, it may be a sign of underwatering. Monsteras prefer evenly moist soil, so make sure you are watering your plant adequately. On the other hand, if the entire leaf is yellowing, overwatering might be the problem. Allow the soil to dry out between waterings to prevent root rotting and yellowing leaves.

Another possible cause of yellowing leaves is a lack of nutrients in the soil. Monsteras are relatively slow-growing plants, but they still require some nutrients to stay healthy. If your plant has been growing in the same potting soil for a long time without being fertilized, it might be time to consider adding some nutrients to the soil or repotting it with fresh soil.

Apart from the age-related yellowing mentioned earlier, yellow leaves can also be a sign of improper lighting conditions. Monsteras thrive in bright, indirect light, so make sure your plant is placed in a spot with enough light. If the leaves are turning yellow, it could be a sign that your plant is getting too much direct sunlight or that it is not receiving enough light in its current location.

In cold indoor environments, Monsteras may also experience yellowing leaves. These plants prefer temperatures between 65-85°F (18-29°C). Exposure to cold temperatures, particularly below 50°F (10°C), can shock the plant and lead to yellowing leaves. If you suspect that cold temperatures are the cause, move your plant to a warmer location.

Pruning can also help prevent yellowing leaves. If your Monstera has yellowing leaves due to damage or disease, removing these leaves can help reduce the spread of any issues. Use clean, sharp pruning shears to cut the damaged leaves at their base, taking care not to damage the healthy parts of the plant.

How to prune yellow monstera leaves

If you notice that your monstera leaves are turning yellow, it’s important to take action to help your plant thrive. Yellowing leaves can be a sign of various issues, but pruning can often help address the problem and support the overall health of your plant.

1. Determine the cause

The first step in pruning yellow monstera leaves is to determine the underlying cause. There are several factors that can cause monstera leaves to turn yellow, including:

• Environmental changes: Monstera plants can be sensitive to changes in their environment, such as temperature fluctuations or too much sunlight.
• Overwatering or underwatering: Improper watering can lead to yellowing leaves. Make sure your monstera is getting the right amount of water, allowing the soil to dry slightly between waterings.
• Poor soil condition: Monstera plants thrive in well-draining soil. Repotting your plant with fresh, well-draining potting soil may help improve its condition.
• Pests: Certain pests, such as spider mites or mealybugs, can cause yellowing leaves. Inspect your plant for signs of pests and take appropriate action to eliminate them.

2. Prune the yellow leaves

Once you have identified the cause of the yellowing leaves, it’s time to prune them. Pruning can be done by following these steps:

1. Use clean, sharp scissors or pruning shears to remove the yellow leaves. Cut the leaf stem as close to the main stem as possible.
2. If the yellow leaf is large, consider removing it in sections to make the pruning process easier.
3. If the entire plant is turning yellow, it may indicate a more serious problem, such as root rot. In this case, it’s best to consult a gardening professional for guidance.

3. Support new growth

After pruning the yellow leaves, it’s important to support new growth by providing an optimal environment for your monstera plant. Consider the following factors:

• Provide bright, indirect sunlight: Monsteras typically thrive in bright, indirect sunlight. Place your plant in a spot where it can receive enough light without being directly exposed to the sun.
• Ensure proper watering: Water your monstera well, allowing the soil to dry slightly between waterings. Avoid overwatering, as it can lead to root rot.
• Repot if needed: If your monstera is root-bound or if the soil condition is poor, consider repotting it with fresh, well-draining potting soil. This can help improve its overall health and prevent future issues.

By pruning yellow monstera leaves and providing the necessary care, you can help your plant recover and thrive. Regularly inspect your plant for signs of yellowing leaves and take action promptly to prevent further damage.

How to repot a monstera plant

Repotting is an essential part of caring for most plants, and monstera plants are no exception. Repotting allows the plant to grow and thrive in a larger container, providing more space for its roots to expand. It also gives you the opportunity to refresh the soil and remove any potential problems.

When to repot

Knowing when to repot your monstera plant is important. However, it’s not always easy to determine the perfect timing, as it depends on various factors such as the size of the plant, the pot it’s currently in, and how quickly it is growing. Generally, a monstera plant should be repotted every 1-2 years.

However, if you notice that your monstera plant is not growing as quickly as it should or if the leaves are turning yellow, it may be a sign that it’s time to repot. Furthermore, if the roots of the plant are peeking out of the drainage holes or if the plant seems to be too bound in its current pot, it’s a clear indication that repotting is necessary.

How to repot

Here is a step-by-step guide on how to repot your monstera plant:

1. Prepare the new pot: Choose a new pot that is one size larger than the current pot. Make sure it has drainage holes to allow excess water to escape. Fill the new pot with fresh, well-draining potting soil.
2. Remove the monstera from its current pot: Gently loosen the plant’s roots by lightly squeezing the sides of the pot or tapping it upside down. Be careful not to damage the roots.
3. Inspect the roots: Check the roots for any signs of rotting or damage. If you notice any rotted roots, remove them using sterile pruning shears or scissors. Prune any excessively long roots as well.
4. Place the monstera in the new pot: Position the monstera in the center of the new pot, making sure the root ball is at the same level as or slightly higher than the rim of the pot.
5. Fill the rest of the pot with soil: Fill the remaining space in the pot with fresh potting soil, gently patting it down to secure the monstera in place. Leave a small gap between the soil and the rim of the pot for watering.
6. Water the plant: After repotting, give the plant a good watering to settle the soil and help the roots establish. Ensure that excess water drains out of the pot.
7. Monitor and provide care: Place your repotted monstera plant in an environment that provides bright, filtered sunlight. Avoid direct sunlight, as it can scorch the leaves. Keep the soil consistently moist but not overly wet, as overwatering can cause root rot.

Repotting your monstera plant can help prevent the problem of yellowing leaves and promote healthier growth. By following these steps, you can ensure that your monstera plant has the best possible environment to thrive and continue growing.