White Spots on Monstera Leaves: Causes and Solutions

Monstera plants are one of the most popular indoor plants among plant-lovers due to their unique, patterned leaves. However, if you’ve recently taken a good look at your Monstera plant and noticed some white spots on Monstera leaves, this can be both a confusing and concerning sight. You may find yourself wondering why is my Monstera getting spotty? Is it a harmful issue that could negatively affect the health of your beloved indoor plant?

Fear no more! In this blog post we will help to answer all these questions. We’ll take a closer look at what causes white spotting on Monsteras and how it can easily be fixed so that your precious green friend is back looking beautiful again. If you’ve noticed strange white spots on the leaves of your Monstera plant, don’t panic! This article will explore the various reasons this happens and provide solutions to get your spectacular split-leaf philodendron back to its vibrant self in no time.

White Spots on Monstera Leaves overview

White spots on Monstera leaves can indicate a few different issues that need to be addressed. The most common causes are fungal diseases like powdery mildew, pests like mealybugs and thrips that suck sap, improper moisture and nutrients, and sun damage.

Powdery mildew thrives in damp conditions and looks like white powdery patches. It can be controlled by keeping leaves dry, increasing airflow, using fungicides, and pruning affected parts. Mealybugs and thrips extract sap, leaving white spots where they feed. They can be removed with insecticidal soap or horticultural oil.

Lack of nitrogen causes distinct white patterns along the veins. Supplementing soil with balanced fertilizer should help. Irregular watering leads to edema blisters, while sunburn shows up as bleached spots with crispy edges. Adjust watering schedules and light exposure accordingly.

Repotting into fresh, well-draining soil provides a healthy root zone. Pruning aids recovery by removing heavily damaged leaves and preventing spread. Good air circulation is also key for disease and pest prevention.

Catching issues early and providing good growing conditions is crucial. Routinely inspect, isolate new plants, and properly care for your Monstera to avoid and treat white leaf spots. With the right troubleshooting and adjustments, your Monstera can regain its signature split leaf beauty.

Powdery MildewFungus problem caused by fungus particles in the air that settle on Monstera leaves and feed off the moisture, leading to white patches or powder-like substances appearing.Keep foliage dry, use fungus killer, avoid wetting leaves when watering, ensure proper airflow and humidity levels.
MealybugsSmall, soft-bodied insects that appear as white or greyish cottony masses on the leaf underparts and other parts of a plant. They feed by sucking sap from the stems and leaves and leave sticky stuff which can cause black mold to grow.Use rubbing alcohol or bug-killing soap to remove mealybugs, spray with neem oil solution, throw away plant if necessary, regularly inspect plants for signs of pests and maintain proper humidity levels.
ThripsTiny bugs that feed on the juices found in the leaves. These insects can reproduce quickly and spread from one plant to another, making them a difficult pest to get rid of if not addressed early.Remove affected leaves, spray with diluted neem oil solution, keep plant in a well-ventilated area, use yellow sticky traps to catch adults.
Nitrogen DeficiencyEssential element for plants that provides the energy necessary for plant food-making and other plant processes. Without enough of it, growth will be stunted and color changes (like white spots) may occur.Apply nitrogen-rich plant food, ensure proper lighting and watering, repot plant with fresh soil and added compost.
Saprophytic FungusFungus that grows best in warm and humid environments, often caused by poor airflow or high humidity levels.Improve airflow, keep leaves dry between waterings, clean up pruning tools, avoid wetting leaves when watering. Throw away plant if necessary.
SunburnedMonstera plants are native to tropical rainforests and do not usually tolerate direct sunlight well.Keep plant in a location that receives only indirect sunlight, use shade cloth to diffuse light, scrape off sunburned spots, prune affected leaves, maintain proper humidity levels and watering.
EdemaDisease that develops when a plant absorbs more water than it is able to release through its leaves, leading to the cells swelling and bursting. Reduce watering and humidity levels, only use plant food when necessary, move plant to shadier spot.
Late BlightFungus problem that affects many species of plants, characterized by irregular white spots on the leaves that eventually turn brown and become covered with fungus.Keep plant in well-ventilated, warm environment, keep soil moist, fertilize regularly, prune off diseased leaves and stems, use appropriate fungus killer, clean cutting tools between cuts.

Powdery Mildew

Powdery mildew is a fungus problem that can mess up Monstera plants. It looks like white patches or powder-like stuff on the plant’s leaves, and comes from airborne spores that land on the leaves and feed off the wet stuff.

To sort out Powdery Mildew on your Monstera plant, it’s key to keep the leaves dry and use a fungus killer to zap the spores. You should also avoid getting the leaves wet when watering, and make sure that air can move freely around your plant. Plus, you gotta make sure that you’re not keeping your Monstera in a super damp place as this can up the odds of Powdery Mildew popping up on its leaves.

Not letting it happen in the first place is also important in avoiding Powdery Mildew. Make sure your Monstera plant isn’t crammed in, and that there’s enough room between plants for proper air circulation. You can also use a fungus prevention spray on your Monstera leaves to help stop the Powdery Mildew from forming.

Powdery Mildew on Monstera Leaf


Monstera plants can sometimes get sunburn as a result of a mealybug problem. Mealybugs, tiny white bugs, feed from plant sap. During this process, they let out a sticky stuff that can block the stomata or pores on plant leaves, stopping sunlight soaking in and causing sunburn. The messed up leaves may change color, monstera turning brown or yellow.

There are several steps to prevent and fix sunburn in Monstera plants caused by Mealybugs:

  1. Regular Inspection and Mealybug Removal: Making a habit of checking your Monstera plants, especially focusing on leaf folds where Mealybugs like to hide, is crucial. If you spot a bug problem, pick these pests off by hand or use a cotton swab soaked in rubbing alcohol. Other options include bug-killing soap or neem oil, which are both good at getting rid of Mealybugs.
  2. Safeguarding Against Sunburn Post-Mealybug Removal: After dealing with the Mealybug issue, take steps to stop sunburn. You can do this by moving the plant to an area with less direct sun or draping a light cloth over the leaves to filter the sunlight. Regular watering is also important to stop the leaves from drying out.
  3. Recovery Measures for Sunburned Monstera Plants: If sunburn has already happened, there are ways to help the plant get better. Badly sunburned leaves should be removed to direct the plant’s energy to healthier areas. Help new growth by keeping up a regular watering schedule and providing good plant food. With the right care and attention, your Monstera plant can get over sunburn and thrive again.
Mealybugs on Monstera Leaf


Thrips on Monstera are tiny bugs that can infest Monstera plants, causing white spots on the leaves. They feed on the juices found in the leaves and can reproduce quickly, making them a tough pest to sort out if not caught early. To stop more damage to your Monstera plant, it’s important to deal with Thrips as soon as you spot them. Start by removing any messed-up leaves, and then spray the plant with a diluted neem oil solution. Neem oil is a natural bug killer which can help kill off Thrips without hurting your Monstera plant.

Thrips on Monstera Leaf

Additionally, make sure to keep your plant in a place with good air flow and water it only when the soil is dry. Thrips love damp places, so keeping the air moving and not overwatering can help stop them growing. You can also use yellow sticky traps to help catch any adults that may still be hanging around in your plant’s environment. This will help cut their numbers and stop them from laying eggs and causing more problems for your Monstera plant.

I once had a Monstera plant that developed white spots on its leaves. When I checked it out, turned out those spots were tiny bugs with wings. I identified these insects as thrips.

Thrips are small, slender insects that feed on the sap of plants. They can cause a variety of damage to plants, including white spots, yellowing leaves monstera, and stunted growth.

To treat the thrips on my Monstera plant, I kept it away from my other plants first. Then I hit it with some neem oil spray. Neem oil is this cool natural bug killer that takes out thrips.

I also gave the leaves a good wipe with a wet cloth to catch any bugs I could see. I kept up with the neem oil and the wiping for a few days until the thrips were gone.

Nitrogen Deficiency

Nitrogen deficiency can make white spots appear on Monstera leaves. Nitrogen is a key nutrient for plant growth and helps to provide the energy needed for photosynthesis and other plant processes. Without enough nitrogen, growth will be stunted, and discoloration, like white spots, may show up. To fix Nitrogen Deficiency in your Monstera plant, you can apply a nitrogen-packed plant food to the soil or spray it directly onto the leaves. Plus, make sure your plant is getting enough light and water.

If it’s not getting enough of either, this could lead to more nutrient issues. Repotting your Monstera plant into fresh soil with added compost can also give a boost of big and small nutrients, which should help reduce the appearance of white spots. Not letting it happen in the first place is also important in avoiding Nitrogen Deficiency. Make sure to feed your Monstera plant regularly with a well-rounded plant food, and ensure it’s getting enough water and sunlight.

Thrips on Monstera Leaf

Saprophytic Fungus

Saprophytic fungi can cause sunburn symptoms in Monstera plants. These fungi grow in wet, moist places, then hurting the health of your plant. The caused harm often shows up as brown, crispy spots on the leaves, like sunburn.

If you suspect that your Monstera is suffering from Saprophytic Fungus-induced sunburn, there are several active measures you can take to fix the problem and make the plant healthy again.

First off, it’s really important to remove any clearly damaged leaves from the plant. This action helps in stopping the spread of the fungus to the healthier parts of the plant. Secondly, think about changing where your plant lives to create a better place. This means moving the plant to a location with access to indirect sunlight and lots of airflow, which is where it usually grows.

Moreover, check how often you water. Watering the plant not as often can help slow down the growth of the fungus, as these fungi love too much water. Finding a balance between keeping the soil damp and not overwatering (should be watered only when the soil is dry to the touch) is key to keeping your Monstera healthy.

Saprophytic Fungus on Monstera Leaf


Monstera plants, native to tropical rainforests, have a hard time with too much sunlight. These species do well under the canopies of their natural homes, where they get soft, dappled light. Too much harsh sunlight can lead to clear signs of stress on the foliage of Monstera plants. This can show up as white or yellow spots on the leaves, showing signs of sunburn. It’s crucial to control how much sun they get for their best growth and to maintain their healthy, bright look.

To prevent sunburn, be sure to keep your Monstera plant in a location that receives only indirect sunlight. If you notice the plant is starting to get too much direct sunshine, either move it or use a light filter to soften the light.

If you find any existing sunburned spots on the monstera’s leaves, you can gently rub them off using a soft cloth. If the spots and discoloration continue, it may be best to cut off the bad leaves to help new leaves grow.

Finally, make sure your Monstera is getting enough water and has moist air for optimal health. Enough water and moist air can help your Monstera plant to recover from sunburn and grow healthy new leaves.

Stopping it before it starts also matters in avoiding sunburn. Make sure to provide shade for your Monstera plant during the hottest parts of the day, and avoid placing it near windows or other areas that receive direct sunlight.

Nitrogen Deficiency on Monstera Leaf


Edema in Monstera plants, often confused with sunburn, is a condition that arises from too much sun or watering too much. When the plant’s cells drink up too much water, the leaves may show browning or yellowing and could even get a wrinkly or crumpled look. In serious cases, this overhydration can lead to leaf drop.

The edema condition is made worse by hot, dry air and watering a lot, both of which contribute to the plant’s cells’ absorbing too much water. It’s important to find a balance in watering your Monstera plant; enough water is necessary, but watering too much can cause trouble.

To prevent this condition, avoid placing your Monstera plant in areas with direct sunlight. Instead, choose a spot with indirect sunlight, similar to its native rainforest environment.

If your Monstera plant does show signs of edema, limiting more harm involves moving it to a cooler location and adjusting your watering routine to be less often. Another good habit is spraying the leaves with water; this not only mimics the moist air that Monstera plants prefer but also helps cool the leaves, lessening the water they drink up.

Edema on Monstera Leaf

Late Blight

Late blight is a moldy disease that can affect Monstera plants, causing uneven white spots on the leaves that eventually turn brown and get moldy.

To prevent late blight from happening on your Monstera plant, it’s important to keep it in an open, warm space. Make sure to keep the soil damp and feed often. Cut off any sick leaves and stems as soon as you notice them.

If the infection is serious, use a suitable mold killer to help control it. Be sure to follow the instructions carefully and don’t use too much, as this can harm your Monstera plant.

Finally, be sure to clean your cutting tool between cuts to avoid spreading the infection to other plants. Stopping it before it starts also matters in avoiding late blight. Proper plant care, including regular feeding, pruning, and keeping things clean, can help keep your Monstera plant healthy and prevent fungal infections.

Late Blight on Monstera Leaf

Prevent and treat white spots on monstera leaves

White spots on Monstera leaves often show a fungus problem or other stuff. Putting up safety measures and fixing it fast will keep your Monstera healthy and full of life. Here’s what you can do:

  1. Use a fungicide: Fungicides, made to kill fungi, work great if white spots come from a fungus problem. You can get them in most garden stores. Just make sure to do what the package says for safe use.
  2. Cut off bad leaves: If only a couple leaves show white spots, think about cutting them off with a sharp knife or scissors. Throw away these leaves the right way to stop any potential fungi from spreading.
  3. Make the plant’s spot better: Monsteras love bright, indirect sunlight and moist, soil that drains well. If your plant’s spot isn’t like this, it could be more likely to get white spots. Change the plant’s spot and soil as you need to.
  4. Change how you water: Water your Monstera only when the top inch of soil is dry, because watering too much can lead to leaves full of water that get fungus easily.

Additional Tips for Prevention and Treatment:

  • Don’t put your Monstera in full sun, which can cause the leaves to burn.
  • Keep watering it, but don’t water too much to stop the roots from rotting.
  • Feed your Monstera every month during the growing season to help it stay strong.
  • Often spray your Monstera’s leaves to up the humidity, making it feel like its natural tropical home.
  • Keep checking your Monstera for signs of pests and diseases to catch problems early.


To sum up, white spots on Monstera leaves could be because of a bunch of things, like powdery mildew, mealybugs, thrips, not enough nitrogen, saprophytic fungus, sunburn, edema, and late blight. Knowing the exact reason for these spots is super important to handle the problem right and make sure your Monstera plant keeps doing well.

Always watching your Monstera for signs of trouble is key, because finding a problem early and dealing with it are super important to effectively manage and stop these issues. Using right safety measures and following top plant care tips will go a long way in keeping your Monstera healthy and beautiful.

For more details, tips, and expert advice on taking care of plants, check out FamiPlants. With the right care and attention, your Monstera plant will grow well and stay a stunning addition to your inside or outside space.

Hi, I'm Cathleen Clemens. I graduated from Cornell University with a degree in plant science. I gained detailed knowledge about various kinds of plants and how to properly care for them. My experience has enabled me to easily detect any issues such as pest infestations, nutrient deficiencies, or signs of diseases in the plants.

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