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Monstera Leaves Turning Brown (8 Easy Ways to Fix It)

It can be heartbreaking to see your monstera leaves turning brown, but there are solutions. I’ll walk you through all of the possible causes of this problem, and everything will be fine.

Sunburn, low humidity, poor nutrients, over-fertilization, transplant shock, diseases, and extreme temperatures all contribute to the browning of Monstera. Other possible causes include inconsistency in watering, physical damage, and a lack of light. Before watering the Monstera, make sure the potting soil is 70-80 percent dry. Maintain a humidity level of 60% and avoid direct sunlight on the monstera.

If you know what you’re doing wrong, simply read this article to learn how to fix it. It’s critical to act quickly to save your plant. You may also be interested to find out why monstera is so popular as a houseplant.

Indoor monstera plant leaves turning brown.
Monstera Leaves Turning Brown

Causes of Monstera Turning Brown

Monstera plants require special attention to stay healthy and beautiful. Sadly, you may miss a few factors and discover that your plant is already browning.

Overwatering leads to Root Rot

While you may want to give them a lot of water, you must be careful not to overwater them. Too much love can cause them harm.

Too much water applied too frequently and in too large quantities, would rot the roots and cause them to stop working.

Continuous wetness suffocates the root system, preventing it from getting enough oxygen. The root cells gradually die and are no longer able to function properly.

Too much water around the root system fosters the growth of fungus, which is the primary cause of root rot disease.

Rotten roots are unable to absorb water or other nutrients, causing the leaves to discolor, sometimes turning yellow and eventually brown.

Signs of Overwatered Monstera
Signs of Overwatered Monstera

Signs of Overwatered Monstera

  • Brown Spots on the leaves.
  • Soil Wet and Monstera Wilting.
  • The stem and leaves are turning yellow and brown.
  • The soil is emitting a foul odor.
  • Mold is growing on the soil’s surface.
  • The leaves have become limp and mushy.
  • Most of the time, the soil surface remains wet.
  • The roots are mushy and brown. It is easy to separate from the root system.

How To Fix Watering Issues

  • Remove the brown leaves and set them aside.
  • Unpot your monstera and examine the root system. and wash away the dirt.
  • Inspect the root system and look for rootten mushy roots.
  • Using sterilized shears, cut the decayed roots off.
  • Disinfect the remaining roots with a hydrogen peroxide solution. In a 1:3 ratio, dilute 3% hydrogen per oxide solution with water.
  • Keep the plant in a cool, dry place for 6-8 hours to allow it to completely dry out. To expedite the process, use tissue paper or newspaper.
  • Repot the plant with new potting soil. If you want to use the previous pot, make sure to sterilize it with how water.
  • Keep your watering suggestion for next week.

How do I know if my Monstera needs water? A weekly finger test will let you know whether you should water your Monstera.

To determine the moisture content, dig your finger 1-2 inches into the substrate. If you notice moisture, reduce your watering schedule. If the soil feels dry then give your monstera a drink.

A watering meter, on the other hand, can be extremely useful. It will assist you in determining the moisture content of your soil. This way, you’ll know when to water your plant.

How do I water my Monstera? Make sure you are consistent in order to prevent drought stress and overwatering.

Ensure that you drain out excess water from your soil. This could lead to the browning of leaves.

Also, make sure you used well-draining soil for your monstera.

Furthermore, Monstera requires less watering in the winter; simply keep your plant in a warm location. This is because most houseplants go dormant during this period.

Read this article to know the step by step process of How to Save Overwatered Monstera

Lighting issues Cause Browning of Monstera Leaves

Your Monstera enjoys bright light, but not direct sunlight. Sunburn would result from exposing your Monstera to direct sunlight.

Sunburn is most common when growing Monstera in a southern room. Alternatively, when moving it outside in the summer. Your houseplant actually requires a lot of light to grow those large, beautiful leaves you adore.

On the other hand, if your monster does not get enough light, it will turn brown and produce smaller leaves. Light is required for leaves to produce food, as well as a green pigment called chlorophyll, which is responsible for the green color.

If your monstera isn’t getting enough light, it may not produce enough green pigment and food to keep the leaves healthy. As a result, the leaves of the mostera turn brown and yellow.

How To Fix Lighting Issue 

  • Remove the brown leaves; they will not restore.
  • To achieve the best results, place your Monstera in an east or west-facing window. Remember that your Monstera will thrive in bright, indirect light.
  • If your monstera is near a south-facing window, keep it at least 5-6 feet away (1-2 m). As a result, it only receives partial sunlight.
  • Also, for south facing window, use a sunblocking curtain. This should keep your monstera safe.
  • Make the mistake of leaving your plant outside unless it has been acclimatized.
  • If you don’t have access to natural light in your room, use artificial lighting to keep your monstera happy and healthy.

Monstera’s Leaves Turn Brown Because of Too Dry Soil

Monstera can withstand some drought because it grows naturally on tree trunks and climbs on them. Other mechanisms, such as aerial roots, help it collect water from the air.

We know that nutrients in the soil are soluble, so water is an essential component of plant nutrient intake. After absorbing nutrients, the root system transports them to other parts of the plant via a tissue known as the xylem.

This entire process requires water, and plat cannot continue the normal physiological process without it.

As a result, your monstera leaf cells will die, making them vulnerable to pests and diseases. Browning of the leaves is the result of all of the preceding actions.

Brown Leaves on Monstera Due to Underwatering
Brown Leaves on Monstera Due to Underwatering

Sings of Underwatering Mostera

  • Because water cannot reach the farthest parts of the leaves, such as the edges and tips, they turn brown and crispy.
  • Monstera leaves turning brown and curling are common signs of soil dehydration.
  • The potting soil will be completely dry, and the pot will feel light in weight.
  • Drooping symptoms will appear on the leaves.

How to Fix Underwatered Monstera

  • Heavy underwatered monstera requires a thorough soak in water. Place the pot in a sink with running water.
  • Another method is to water the pot thoroughly and ensure that the water drains through the drainage holes.
  • Continue watering until the soil is saturated.
  • Water the monstera again when the top 1-2 inches of soil become completely dry.

Diseases Leads to Browning of Monstera Leaves

Monstera turning brown could be a symptom of a disease. Actually, there are a number of The browning of Monstera could be a sign of a disease. Actually, a variety of diseases can cause your plant to turn brown.

Eyespot disease: Brown leaves may indicate that a window leaf is infected with a fungal infection known as eyespot disease. (Spilocaea oleagina).

Anthracnose: Fungi are also responsible for this disease. If your plant has a wound, it is very likely to become infected with this disease. In this case, your plant will first turn yellow, then brown, before dying.

Monstera Leaves Turning Brown Due to Fungal Diseases
Monstera Leaves Turning Brown Due to Fungal Diseases

Sings of Fungal Disease on Monstera Leaves

  • Brown spots with yellow borders on Monstera leaves.
  • Reddis Rusty spots on leaves.
  • Spots of yellow and white appear on the leaves.

How to fix disease issues

  • Cut off the affected leaves with disinfected, sharp scissors.
  • Treat the infected leaves with baking soda spray. One teaspoon of baking soda added to one quart of water yields a typical baking soda spray.
  • Fungi thrive in overly wet conditions, ensure that you keep your foliage dry for some time to fix the issue.
  • Ensure that your plant gets adequate humidity. Low humidity facilitates fungal infection.
  • If you have other plants nearby, it’s important you check them for disease as well. This would help you get to the bottom of the problem. (Source: University of Florida/IFAS Extension)

Temperature Stress

As a tropical plant, your Monstera is used to temperatures between 68–86 °F (20–30 °C).

A sudden temperature change or exposure to harsh weather conditions can cause your plant to turn brown.

A sudden drop in surrounding temperature damages the tender leaf cells, resulting in the browning of the leaves. The length of time spent in the cold will determine the severity of the damage.

If the plant is placed on the balcony or outside of the room, cold drafts can cause significant damage to the leaves and overall plant.

Furthermore, the cold bite caused by direct airflow from the air conditioner damages the leaves.

Another way to get cold is to place the plant near windows, which can also cause damage if a cold draft enters through it.

How To Fix Temperature Issue

  • Keep your plants warm during the winter. If you notice that your room is extremely cold, you can easily move your monstera to a warmer location. Don’t leave your plants in the conservatory or unheated sunrooms during the winter.
  • Keep your Monstera plant away from heat vents and air conditioners. Also, avoid putting your plant near hot or cold windows. Extreme temperatures can cause significant damage to your Monstera.

Low humidity Causing Brown Monstera Leaf

Your Monstera plant has spent its entire life in high humidity. As a result, low humidity can cause their leaves to turn brown.

low humidity causes your plant to lose moisture through the leaves’ stromata. So, monstera requires more water than usual.

When the humidity is consistently low, it shows dehydrating symptoms. The tips of the leaves curl and dry out, turning brown.

Relative humidity between 50-60% is best suited for most houseplants.

Monstera Leaf Tips Turning Brown Due to Low Humidity
Monstera Leaf Tips Turning Brown Due to Low Humidity

How to Fix Low Humidity

If you live in an environment with a dry climate, there are certain tricks you can use to prevent your Monstera leaves from drying up.

  • You can buy a humidifier to maintain the ideal humidity level for your plant. If you want maximum growth and massive, beautiful leaves, keep your humidity level around 60%.
  • Alternatively, you can change the position of your plant. Think of a place in your home with higher humidity and bright light. Oftentimes, our bathrooms have higher humidity. This is because of the wet environment created by the misty shower and sinks!
  • Grouping your plants or placing them in water-filled pebble trays can also help with humidity issues.
  • Misting is another way to raise humidity. To mist your monstera, simply spray water directly on the leaves. To maintain optimal humidity, do this several times per day. But i don like this process as it increases the threat of fungal infection.

Over-fertilizing

Over-fertilizing also leads to brown leaves on the Monstera. In fact, over-fertilization would cause your Monstera plant to display certain symptoms like leaves turning black or brown.

Your plant might display symptoms of lack of nutrition and excess nutrition at the same time.

Because excess fertilizer can cause damage to your root,  preventing your plant from being able to absorb nutrients and water.

So, your monstera can show symptoms like yellowing or browning of leaves.

Monstera plant leaves turning brown due to improper care
Monstera Leaf Burn Due to Excess Fertilizer Application

How To Fix Over-fertilization Issue

  • First, it is important that you analyze how much you have been fertilizing previously. You can do this by checking for stakes of salt.
  • Now, wash your soil with a profuse amount of water in order to get rid of excess salt.
  • Avoid fertilizing your soil for the next three months to avert the situation.
  • Ensure that you pamper your plant with adequate lighting, watering, and humidity.
  • You can also consider repotting your Monstera. This should be seen as the last alternative as repotting can stress your plant.  

You May Also Enjoy: Why Does My Monstera Have Brown Spots? (And How to Fix It)

Monstera Transplant Shock

It’s exciting to see your monstera grow into a large size. Eventually, you have to repot since they can no longer stay in a smaller container. 

If you don’t perform the transplant correctly, your monster may suffer an injury during the process of transplantation. Some of the roots are extremely delicate, and even with the utmost care, they can be damaged.

In addition, it will take some time for your monster’s root system to establish itself in its new home. This period of transition is referred to as transplant shock, and it results in the wilting and browning of your monster leaves.

Monstera Leaves Turning Brown Due to Repotting Shock
Monstera Leaves Turning Brown Due to Repotting Shock

How To Fix Transplant Shock Issue

 If your plant is already suffering transplant shock, you can only fix the issue by giving the plant ultimate treatment.

  • Ensure that your plant has enough drainage holes. 
  • Remove all dead leaves and stems, this would allow new ones to grow.
  • Stop fertilizing your plant for some months. Fertilizing can cause your plantto even more stress.
  • Ideally, if you’ve moved your plant to a different position and it turned brown, it could be that your houseplant is not getting optimum light and humidity there. Simply take your plant back to the previous position it lived in before transplanting.
  • Ensure that you give your plants adequate water. Overwatering could damage your Monstera at this point.

Physical Damage

I know you love your Monstera, it might seem so cute for you to touch them every morning, but be careful not to cause physical damage to your plants.

This would eventually cause your monstera to turn brown. ( Ohh! You’re so guilty of this, I thought as much). 

Your monstera can also get hurt while repotting or changing placement. So be careful while doing this kind of stuff.

Another possible threat of physical damage is your pet. It sounds odd but your poet may be guilty of damaging this green beauty. 

How To Fix Physical Damage

  • Try not to touch your plants too often, especially the young ones. It could be hard, but try! 
  • Carefully follow the steps while transplanting. 
  • Make sure your pets can not reach to the placement of your monstera. In addition, you should keep in mind that monstera is mildly toxic to pets and also humans.
  • You can elevate the plant container to keep it away from pets.
  • Another way is to train your pets not to mess with the houseplants.

Now you can easily get your plants back to their beautiful self. I tried to cover all the possible causes and solution so that you do have to worry about you monstera turning brown. If you have any suggestions and experience please feel free to share.