How to Fix a Monstera Adansonii With Yellow Leaves?

Monstera Adansonii
Monstera Adansonii (Source: Pixabay)

Seeing my Monstera adansonii grow out signature heart-shaped leaves for the very first time was immensely pleasing, but the experience only lasted for a while.

To make it grow more prominent, I choked the plant with excess fertilizer, water, and sunlight, which only caused yellowed leaves.

However, although it sounds terrible, it does not mean you cannot revive your plant.

Fix yellowing Monstera adansonii by flushing the soil with water to remove excess fertilizer. Cut back on watering for an overwatered plant and place it in indirect sunlight with humid surroundings to revive it.

Adansonii Yellow leaf
Adansonii Yellow leaf with browning tip (Source: Unsplash)

It may effectively treat premature yellowing leaves, but beware of other factors that could cause yellowing.

Read on to learn more about different causes of yellowing leaves on Monstera adansonii and how to treat them effectively.

Is it Normal for Monstera Adansonii Leaves to Start Yellowing?

Just like a yellow traffic light indicates “Caution,” the appearance of yellowing leaves on Monstera may indicate dangers ahead.

In fact, yellowing foliage is an early indication of something gravely wrong with Monstera adansonii, especially the roots.

A tropical plant naturally thrives in warm and humid conditions with ample indirect sunlight, ideal moisture level, and minimal plant food.

You would know this by the healthy set of lush, green heart-shaped leaves with multiple holes.

Adansonii hollowed leaves
Adansonii’s signature hollowed leaves (Source: Unsplash)

However, if the growing condition is severely altered, the plant leaves may turn yellow, including an aging plant that exhibits decayed, yellowed leaves.

Although you cannot do much about an old plant, you can revive yellowing on young plants.

Your only option is to treat it before it progresses throughout the plant and does more damage.

Causes of Yellowing Leaves in Monstera Adansonii [With Quick Fixes]

It may be heartbreaking to see your beloved Monstera leaves turning yellow.

Let us start with diagnosing each problem that may cause yellowing leaves, followed by their treatment.

1. Improper Watering

Monstera adansonii can be picky when it comes to watering.

Incorrect watering, both over and underwatering, may compromise its state, causing premature foliage yellowing.

Excess watering clogs the roots that prevent oxygen supply throughout the plant.

On the other hand, underwatering will prevent the roots from transporting nutrients from the soil to the plant.

Moreover, waterlogging may also invite fungi and harmful organisms, causing pest infestation.

A. Fix Overwatering Problem

An overwatered plant primarily exhibits brown tips with soft and limp leaves.

The stunted growth and indentations forming above the growth will indicate a severely overwatered plant.

Check the soil condition by inserting your finger. It would definitely mean an overwatered plant if it feels moist with the signs mentioned above.

Here are a few tips to combat overwatering problems.

  • Immediately cut back on watering until the plant revives.
  • Check for root rot if the plant does not seem to revive. You should dispose of the plant immediately.
  • Revive a slightly rotted plant by trimming the infected roots and transplanting them to a new potting mix.
Prevent Overwatering Problems
  • Monstera adansonii requires moderate watering; hence, let the top 2-inches of soil dry out between watering.
  • Adjust watering frequency: 800 ml of water once a week in the growing season and even less in winter (Water every 15-20 days in winter).
  • Remove the excess water collected in the saucer to prevent the plant from sitting on idle water.
  • Check for root rot problems by sliding out the plant. Prune off infected parts immediately.
Watering Monstera Adansonii plant
Watering Monstera Adansonii plant (Source: Pexels)

B. Fix Underwatering Problem

To identify an underwatered plant, check for browning with crispy and discolored leaves and some curling.

Insert the finger into the soil and check whether it feels dry and hard, at least 3″ under.

Here are a few tips to combat underwatering problems.

  • Do not suddenly start to drown it in water to compensate for underwatering. Instead, gradually increase the amount intake to 1.5 liters.
  • Consider deep watering the plant only after the plant seems to revive.
  • Shower it until the water starts running out through the drainage holes to moisten the potting mix thoroughly.
  • Submerge the pot in a container with water to help it naturally soak moisture.
Prevent Underwatering Problem
  • Ensure your plant is not root-bound. Slide it out to check for root growth.
  • A severely root-bound plant must be transplanted into a larger pot.
  • Follow the weekly watering schedule and avoid keeping the plant in areas with excess heat or drafts.
  • Change the potting mix if it feels drier than usual.
  • Introduce a self-watering pot to keep the soil slightly moist at all times.

Find out the reasons Why your Monstera leaves are curling?

2. Improper Lighting

The lighting intensity plays an essential role in achieving healthy leaves.

Direct exposure to sunlight or high-intensity indirect light can damage the leaf, causing sun scorch and yellowing.

Prolonged sun exposure encourages transpiration, leading to leaves losing a significant amount of water. It happens because the intense sun rays break down the chlorophyll.

You would mostly witness tip burns, faded spots, patchy brown signs, and overall yellowing.

Transpiration
Transpiration Diagram (Source: ScienceFacts.net)

On the other hand, too little lighting may encourage yellowing foliage due to excess moisture, similar to overwatering.

Because it lacks variegation, it does well in moderate lighting to achieve green leaves.

Fix Lighting Problem

  • Monstera adansonii does well in medium, filtered lighting for 5-8 hours a day.
  • Move your plant to the south or west-facing window but keep them at least 6-feet away to avoid intense sun rays.
  • Use a grow light with the right color spectrum to compensate for the lack of sunlight (8-10 hours a day), especially during winter.

Note: The plant will recover within a few weeks but not without collateral damage; it may lose the yellowed leaves.

3. Excess Fertilizing

An imbalance in essential macronutrients may also cause yellowing leaves in Monstera adansonii.

The yellowing foliage mostly happens from excess fertilization, leading to salt burn to the roots.

Affected roots are less likely to absorb moisture and are prone to diseases. You would notice slowed growth, with the lowest leaves turning yellow.

On the other hand, a nutrient deficiency may also cause yellowing, but the exhibited signs slightly differ.

Nitrogen and Potassium deficiency can lead to yellowing in older leaves, while lack of phosphorus may darken them.

Yellow Leaves
Yellow and Infected Leaves

A. Fix Overfertilizing Issue

  • Leach off excess fertilizer with water and drain the pot several times to remove salt contents.
  • Cut back on fertilizing until the plant recovers.
  • Avoid fertilizing the plant for at least 4-6 months after repotting to prevent salt buildup in the soil.

B. Fix Underfertilizing Issue

  • Choose 3-1-2,  6-2-3, 9-3-6 NPK fertilizer to boost Nitrogen and Potassium contents in the soil.
  • Fertilizer every 8-week to provide nutrients for even growth.
  • Add a micronutrient, iron sulfate, to the fertilizer and apply twice or thrice a year.
Foliage Pro Fertilizer
Foliage Pro Fertilizer (source: Amazon.com)

4. Temperature Stress

Monstera adansonii is a tropical plant that thrives in ideally warm conditions (60-80-degrees Fahrenheit) with humidity levels above 50%.

Anything under 50° F (10°C) temperatures and 50% humidity can stunt plant growth, which is exhibited by yellowing foliage.

Similarly, temperature above 95-degrees Fahrenheit may eliminate humidity from the air, leading to dried and crispy leaves.

Temperature in relation to plant's growth
The temperature in relation to plant’s growth (Source: ResearchGate)

Due to excess transpiration, the leaves will lose the green pigments, inviting premature yellowing.

Fix Temperature and Humidity Issue

  • Move your plant to a southwest-facing window with enough indirect sunlight to provide an ideally warm location.
  • Bring it indoors in winter and place them under appropriate grow lights, or use insulation meant for houseplants.
  • Plants grown in an arid climate would require frequent watering and misting.
  • Mist the plant leaves regularly during the summer season to create a humid environment.
  • Consider spraying the cage twice a day at room temperature for terrarium-grown plants.

Pro Tip: Introduce mini greenhouse in your garden or backyard to naturally boost humidity levels when the outer temperature rises.

5. Transplant Shock

Transplant stress is a likely cause for yellowing leaves in Monstera adansonii.

A recently repotted plant may go under stress when the roots are exposed for too long or excessively pruned.

Repotting Monstera Adansonii
Repotting Monstera Adansonii (Source: Unsplash)

A wrong potting mix and repotting at the wrong time of the year (fall and winter) may also cause transplant stress.

The plant will likely witness stunted growth with leaf scorch (yellowing or bronzing leaves).

Note: You cannot do much to treat transplant shock but continue with regular care and wait for a few days. Find out Why your Monstera drooping after repotting?

Fix Transplant Stress

  • Place the plant in its original location to provide optimum lighting and temperature.
  • Continue with the same watering schedule to keep the soil moistened for roots.
  • Avoid fertilizing the plant until it revives.
  • Make a sugar and water solution and pour it over the soil to prevent severe transplant shock.

Pro Tip: Consider repotting your plant in spring, summer, and early fall to prevent transplants stress.

6. Infestation of Pests and Diseases

The onset of pest infestation and diseases is another reason for yellowing foliage.

Monstera adansonii suffering from Bacterial leaf spots, Anthracnose, and leaf rust may witness stunted growth with yellowing leaves.

The fungal disease spreads from overly wet soil to the roots then stems.

On the other hand, pest infestations such as mealybug, spider mite, and aphids will suck the plant sap, causing deformation and yellowing.

Fix Pest and Disease Infestation

  • Start with disposing of the plant that seems severely affected to prevent further spread.
  • Use Bonide 811, Garden Safe Fungicide, or Liquid Copper fungicide to treat fungal diseases.
  • Prune the pest-infested part and wash the plant with insecticidal soap or Neem oil.
  • Isolate the plant until it comes back to its natural state.
  • Trim the slight infestations and repot it in a fresh potting mix to witness a revived plant.

Tips to Avoid Monstera Adansonii Yellowing

Here are a few tips to avoid yellowing foliage in Monstera adansonii.

FactorsSpecification
Moisture Stress-Change the pot from compact plastic to clay or terracotta with plenty of drainage holes.
Light Stress-Keep away from light-exposed windows or patios.
-Use grow lights in fall and winter.
Lack of Nitrogen-Apply plant food every 8-weeks with macro and micronutrients
-Use fertilizer rich in Nitrogen
Humidity Stress-Add a room air humidifier or mini-greenhouse at home
-Introduce other plants in the surrounding.
Diseases-Avoid overly moist locations at home.
-Avoid foliar spraying the plant.
-Use certified aphid-free potting mix.

Frequently Asked Questions About Yellowing Monstera

Here are answers to a few frequently asked questions about Monstera adansonii.

Should you Cut Yellow Leaves Off Monstera Adansonii?

Most yellowing symptoms can be treated by correcting the growing condition.

In case of yellowing from root rot or transplant shock, allow the plant leaves to die before cutting them off entirely.

The plant will absorb essential nutrients from the dying leaf, and cutting it soon would only prolong the damage.

Can Yellow Leaves on Monstera Adansonii Turn Green Again?

As mentioned above, you can revive most yellowing symptoms on Monstera adansonii by correcting the growing condition.

The yellowing caused by over or underwatering, wrong humid conditions, and temperature stress can be corrected.

Follow the treatments mentioned above to find an appropriate solution.

Monstera Adansonii
A healthy Monstera adansonii (Source: Pexels)

Conclusion

Premature yellowing of leaves may indicate a grave problem with the Monstera plant.

Start with diagnosing the trouble to find a cause for yellowing as soon as you witness the discoloration.

However, do not worry because the yellow Monstera leaves can turn green again.

The plant will completely recover and regain its signature green, heart-shaped leaves with immediate treatment.

Related Article: Monstera Siltepecana: Ultimate Care and Growing Guide

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