Why Are Leaves Turning Brown On My Rubber Plant?

Do your leaves from your plant becoming to brown, and then falling away? Are your plant leaves becoming brown around the edges?

This has never been seen before, and you’re not sure of the cause! If you’re interested in learning more, the cause, then keep reading!

The leaves of the rubber plant turn brown due to sunburn, diseases and lack of light temperatures, pests and fertilizer problems, excessive watering, submerging, and much more.

The leaves of rubber plants become brown due to a the lack of nutrients, excessive watering or submerging. Additionally, direct sun exposureto the sun, infestation with insects, or other diseases may cause the leaves turn yellow. The type as well as the pattern that browns to aid in identifying and fixing the issue.

Let’s look at some possible causes that could aid in determining the primary cause.

Causes of Rubber Plant Leaves Turning Brown

It is important to determine the exact reason behind your situation to be able to intervene and determine the best solution. The probable causes and ways to address these:


There’s a chance that the plant’s rubber leaf is turning brown as a result of a variety of ailments.

A healthy rubber plant will have no symptoms If the leaves are turning brown, it could be a sign of an underlying illness.

Fusarium (a fungus) could cause the root to rot. If you’re overwatering your rubber plant, it will create a favorable environment to encourage the development of Phytophthora (a pathogen).

Below are some of the frequent ailments to which rubber plants are at risk of:


The fungal infection causes dark, rusty borders. If you notice yellow spots which eventually turn brown, your rubber plant is affected by anthracnose and there is no doubt. The leaves slowly change color as the disease grows.

The fungal spores are the primary ones that allow anthracnose to multiply throughout the water. Therefore, you should not water at the highest elevations. Remove the fallen leaves and then cut off the affected leaves as soon as you notice them.


If you notice tiny black or brown spots appearing on the leaf plates, then it’s cercospora disease that is causing the problem.

They will completely change color and then turn brown once the damage is serious. It is recommended to eliminate the affected leaves as soon when you begin to notice symptoms.

ficus elastica rubber plant

Botrytis Blight

The fungal infection can be caused by the Botrytis cinereafungus. If you are infected, you’ll see the appearance of rusty and brown spots on the surface of your rubber plant’s leaves.

The leaves that are severely affected die and then fall off the plant. Remove the disease by cutting off damaged leaves and spraying them with fungicides.


Careful maintenance and proper care of the rubber tree plants will help them avoid diseases.

Keep an eye on your plant , and when the leaves are damaged, you can trim the leaves.

The excessive watering of plants can cause root rot, which can cause root death, causing the leaves to become brown.


Edema can occur when the surrounding environment for the plant is too humid, and there is a lot of liquid in soil.

In this situation the leaves have less of a chance to evaporate and more water begins to build up within the leaves of your plant.

If your plant suffers from this condition, then you will notice the brown spots appearing on leaves.


There must be holes under the pot that allow for the drainage of any excess water.

It is also possible to move your plant to an area that is less humid and begin monitoring the watering system, especially in cold weather.


If you purchase a rubber plant, you must decide the most suitable spot in your home. It should be placed in a spot where the sun’s intensity is at the right level! There is a chance of being exposed to too much sunlight.

If the intense, scorching light of the sun hits the leaf of a plant that produces rubber, it could get sunburned and result in brown leaves.


Beware of overexposure to sunlight as soon as possible. Find the ideal location where your plant will get enough light without creating sunburn.

Direct sunlight is ideal to rubber plant. Beware of direct sun!

Lack of Light

Planting in an area that is dark could cause a decrease in chlorophyll, which is vital for the production of food.

Insufficient chlorophyll may cause the leaves of rubber plants turning yellow or brown.


Alter directions of your rubber plant so that it receives more sunlight. It is possible to relocate the plant away from its original position during winter months.

The best location is close to a window, where you can get morning sun from the east.

If changing the spot improves it, then it is likely that a the lack of light was the primary reason for the problem.

Temperature Stress

The rubber plant prefers warmer temperatures. The ideal temperature for them during daylight is between 75degF (23.9) to 80degF (26.7) and at night, it’s 60degF-65degF (15.5-18.3).

Therefore, it’s crucial to keep the plant in a place where the temperature is appropriate for the life of the plant, otherwise the leaves will become brown.


Do not place the plant in a position lower than 55 degrees Fahrenheit (12.7). Keep it clear of fire. It is essential to create the best conditions to ensure the health and safety for your plant.

If you’re a new gardener, you may not be aware of these specifics, however you will learn over time. It is important to know the temperature that is appropriate for the health of your plants.

Pest Infestation

The most common pest you will find in your rubber plant are the white mealy bugs.

It is essential to keep insects away from your plant in order to protect it. Other insects that could harm the rubber plant are spider mites and scale.

Pest infestations can be very serious, for instance spider mites are tiny insects that can create webs in the tips and base of the leaves. The leaves may dry, brown, and may result in losing leaves as well.

Spider Mite Infestation

The combination of warm and low humidity can trigger the growth of mites known as spiders. They are tiny creatures that are difficult to find on leaves.

The tiny critters suck the juices from the leaves, leaving brown spots that eventually.

If it is attacked by the leaves from your plant,, it could cause the plant to suffer quite a bit.

It also multiplies quickly. Therefore, the moment you notice spider mites, you must take action to get rid of the mites.


I have a simple DIY home remedies to treat this issue. Garlic is a very effective treatment in removing spider mites. The process of preparation is easy:

  • Two heads of garlic are enough and cut them into pieces.
  • Pour boiling water.
  • Make sure to keep the solution for at least 5 days with no any light
  • Then, dilute the solution by mixing it with water 1:1 and spray it on the infested plant.

Thrips Infestation

Thrips are a different, tiny spider mite that resembles an insect. They are soft-bodied and green-colored insects that cause damage the same way as spider mites.

They are able to multiply quickly in humid and warm environments. The leaves can change color from yellow to brown and then gradually.


Spraying neem oil using mild soap water is great against these sucking insects. I have found that rubbing alcohol is an additional effective method of getting rid of the thrips.

In extreme cases, you may need to think about spraying an insecticide in order to protect your beloved rubber plant.

Scale Insect

Dry and warm environments are the best conditions for the growth of scale insects.

The insects have a tough cover similar to the shell. In general, you will see them on the underside of leaves.

They simply sit on the leaves and feed off the leaves. The brown spots and the leaves becoming brown are the result that you can observe.

Scale insects also excrete a honeydew-like liquid that is similar to sugar. The honeydew is a magnet for other insects as well as fungal growth.

This way the leaves of your rubber plant could lose their appeal and become brown.


If the population is small, you can remove the insects out of leaves. The use of horticultural oils has been proved to be extremely efficient against the scale insects.

Check the plant regularly to ensure that there isn’t any infestation that could cause harm to the plant. This will help in preventing the spread of bugs.

Fertilizer Problem

It is possible that you are not fertilizing your plants regularly, so fertilizer issues can cause leaves turning brown too!

The plant requires nutrients to development and you supply the need through fertilizer.

If you don’t do it in time, there is a chance that leaves will change the color! In addition, overdoing it could cause leaves to turn brown.


Be sure to provide fertilizers in a sufficient amount. It is possible to use an organic fertilizer for your house plants that is water-soluble. It is recommended to apply it every two weeks, especially in the spring and summer season.

If you keep the light source for rubber in low lighting or the lighting conditions aren’t sufficient in your region, then you should fertilize less frequently than every two weeks.

Knowing the fundamental needs can assist in providing vital nutrition to rubber plants.

Lack of Nutrition

Insufficient nutrition could be a reason for worry. A deficiency of potassium in rubber plants could cause chlorosis. (Source: University of Florida)

If the situation is severe, the plant will change color to brown. In the absence of nutrients, it means that you should add additional fertilizer.


Give the plants a fertiliser that is balanced so that they get the necessary nutrients needed to remain healthy.

Every aspect of life, including rubber plants require the right nutrients to support its development and maintenance.

Try mixing 1/2 teaspoon of 10-10-10 nitrogen as well as phosphorus and potassium in 1 gallon water. It can be applied after one month.

Poor Air Circulation

Insufficient air circulation can lead to the growth of fungal organisms and increase the number of insects. As a result, there could be spots on the leaves , or the leaves could change color.

Many times, choosing the best location for the health for the plant’s rubber is vital.

Rubber plants can be used for air purification, however you must provide an ideal location.


The plant should be placed in a location where air circulation is suitable. It’s possible to choose the most optimal location where the plant will get moderate sun and will be able to survive.


The plant that produces rubber requires a moderate humidity. The plant is capable of coping with the dry air found in indoor environments.

If the humidity is low, it could result in the leaf to change color. Due to low humidity, the leaves of rubber may lose more water as a result transpiration.


It is recommended to aim for 25 to 49% humidity for your rubber plant. It is possible to place water trays close to the plant. You can also put an humidifier close to it.


The sign that tells you that you have overwatered the rubber plant would be that the leaves will begin turning yellow.

When you see the warning sign, begin reducing your water intake you drink until healthy, glossy green leaves begin to appear.

If you continue to overwater, eventually, the leaves of your rubber plant will turn brown.


If you’re not sure whether water overflow is the primary reason, look at the roots. If the roots are healthy, then you’re right! However, if they are rotten, then you must be concerned.

Make sure to save the rest part of the plant. Clean the roots and put it in a draining pot filled with fresh soil. Stop overwatering!


It is possible to see the indication of water loss because the leaves will turn brown at the edges. The edges would be becoming brown.

The plant will not appear as fresh, and this indicates that it requires more water. The soil will also appear dry.


The plant is in need of more water. Leaves are dry, and crisp when they are underwater. The soil is visible and it will be dry.

Try adding more water to soak up the soil may aid! However, you must be cautious not to drown the plant.

Unsuitable Pot

A pot that is too small, or in the opposite direction an overly large pot could also lead to the pot to yellow. This issue can be solved by choosing a pot that is suitable for the size;

Root Rot

This is the most hazardous, but a common issue for rubber plants, as well as other plants.

The soil that is overwatered and wet creates an ideal environment for fungus. Alongside other organisms that cause problems, fungus is one of the primary causes for root rot.

The disease is extremely damaging to the root system, and impairs the capacity to absorb micronutrients and water. In the end, you’ll notice a decrease in growth and discoloration of the leaves.

It can be very difficult to recognize the root rot in its the beginning stage. Since you won’t see any obvious signs over the soil.

If you find that your rubber plant growing slow and leaves are discoloring, then you may want to think about possible root decay.

The soil will be soggy and damp soil, and a stink of rottenness will emanate from the bottom.


It’s almost impossible to treat root rot using treatment. However, if you’re lucky you may be able to keep your rubber plant alive by following these steps:

  • Remove the entire plant from its pot.
  • Examine the roots and cut off any affected areas with a sharp shear.
  • Clean the roots and soak them in hydrogen peroxide to remove the toxins completely.
  • Be sure to dry your roots over a period of two days.
  • Repot to use fresh soil. Then, plant it in a new pot.

Natural Aging

There is a chance that the plant simply becoming old. It’s natural and, eventually, the old leaves will die.


There is nothing you can do about natural aging, other than to keep the health of your plant in check. If new leaves have begun to turn brown, it’s an indication of danger.

Improper care

He is probably kept in a bad environment.

Placement near heating and batteries devices and batteries. Due to exposure to heat, the foliage is affected, it dries out and brown specks of specks appear on it.

using inappropriate feeds or excessive use. It is recommended to choose fertilizers that have a high nitrogen content and feed not more than one time every fifteen days.

A large amount of these substances are responsible for the development of a variety of illnesses and cause certain deviations in the development and growth of the flower.

over-watering . If the tree is flooded, it responds by forming dark brown spots.

In this situation the gardener will find it difficult to move the flower into a pot that has new soil.

After transplanting, be sure to examine the root system, and eliminate the root system and sprinkle activated carbon on the section;

exposure to drafts can cause an appearance that darkens. The tree must be that are protected from drafts.

You May Also Enjoy: Why Is My Rubber Plant Dying? (Causes And Solutions)

How to Prevent Rubber Plant Leaves Turning Browning?

There’s an old saying, “prevention is better than cure” and this is for taking care of rubber plants. To prevent the leaves from browning you can do these suggestions:

Give Enough Water: Be sure that you’re giving enough water to ensure the health of your plant. Ideally, you should provide water to the plant within five days.

Keep your eye on the soil. If it begins to feel dry or if the leaves seem to be droopy, then the plant is in need of more water.

  • Check for an adequate drainage.
  • Feel the soil with your fingers and check whether it’s dry or wet. If you feel the soil is dry, then you should give it a watering!
  • In winter, watering will not be as frequent normal. The plant that produces rubber would require less water.
  • Find the perfect spot for adequate Lightning The plant should not be exposed to too much sunlight.
  • It should be placed near a window so that direct sunlight does not burn it. Make sure that the area is getting enough sunlight and isn’t completely shaded.
  • Cut The Brown Edges If you’re certain of the root cause It’s time to trim the edges that are brown. You can then continue to take care of your plant.
  • Be sure to provide the right temperatures. Do not place your plant within an area where temperatures is lower than 55degF.
  • It is also recommended not to place the plant in proximity to fireplaces or heaters.

Final Words

It is essential to create an environment that is suitable for your rubber plant will thrive. If you find that your plant is infested with insects, take care to take action as quickly as you can.

It is best to just adhering to the basic rules and you’ll be good to start. If all goes well then you can count on the leaves to be healthy and healthy!



Went from a bad gardener to a half-decent one over 10+ years. Super happy to share my tips and tricks with you :)