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Alocasia Dropping Leaves? 9 Causes & Quick Fix!

Have you ever noticed your Alocasia plant dropping its leaves and wondered why? This guide will discuss why this happens and share quick and easy ways to fix it.

Alocasias will lose their leaves if exposed to unfavorable conditions and improper care. Watering issues, low light, and over-fertilization are the common reasons why alocasia loses its leaves. Provide correcting watering, adequate lighting, and proper nutrition to fix the issue.

This article will discuss all the possible causes behind why your alocasia is losing leaves and find ways to solve the problem. Read this article carefully to make your alocasia healthy again.

Alocasia leaves turning yellow

I have done my best to address all of your concerns in the article below. However, if you still have any questions or are confused about the article, you can receive personalized one-on-one assistance from me by leaving a comment below. I will respond to your comment within a few hours.


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Why is my alocasia losing leaves?

It is disheartening to see your alocasia losing its leaves when you don’t know why.

This mainly happens when you do not provide your plant with proper care and growing requirements.

As a result, the plant becomes unhealthy and loses all its leaves.

Sometimes, the leaves fall one by one, or many leaves fall off the plant simultaneously.

Identifying the possible reasons that cause your plant to lose its leaves is the path to fixing those underlying causes.

Once you identify the problem, treating the plant and bringing it back to health is easier.

Let us look at all the possible causes of the loss of leaves in your alocasia. 

  • Overwatering
  • Underwatering
  • Low light
  • Pest infestations
  • Wrong soil mix
  • Improper fertilization
  • Unfavorable temperatures
  • Wrong pot size
  • Natural aging

Let us discuss all the above points in detail.

1) Overwatering

Alocasias prefer to grow in moist soil, and often, we overwater them out of care.

Overwatering is a serious issue, and its consequences are hard to resolve.

The excess moisture in the soil suffocates your plant’s roots, so they cannot breathe properly.

Eventually, the roots get damaged and fail to absorb nutrients and water from the soil.

Due to this reason, the plant becomes weak and starts to lose all its leaves. 

A prolonged period of overwatering can result in a deadly disease called root rot.

Root rot can kill the roots and attract various pests and diseases to your plant. 

Yellow leaves, droopy leaves, or curly leaves are symptoms you will notice if you have an overwatered plant.

Solution:

  • Keep your overwatered alocasia in a place with bright sunlight and good air circulation. Wait for a few days until the soil dries up.
  • If the soil is still wet, you must take the plant out of the pot and inspect its roots. If the roots are decaying, prune them off and keep only the healthy roots.
  • Spread the healthy roots on a piece of paper and wait for them to dry, keeping them in a bright spot. Once the roots are dried, plant them back in the pot.
  • Water your plant only after checking the moisture level of the soil. Use a moisture meter or finger method to do it. Water only if the top two inches of the soil is dry to touch.
  • Always use a pot with drainage holes to prevent water accumulation in the soil.
  • To improve soil drainage, you can use organic ingredients such as peat moss, manure, compost, and sand.

Also read: How Can You Save Overwatered Alocasia?

2) Underwatering

Watering Alocasia plant

Underwatering can also result in your alocasia losing all its leaves.

When you underwater your plant, the roots become thirsty due to a lack of moisture in the soil.

Due to this, the roots fail to take up the water and nutrients the plant needs for energy.

Therefore, the plant fails to carry out life processes due to a lack of energy and starts losing its leaves.

Underwatering causes your plant’s leaves to turn curly, dry, crisp, yellow, and droopy.

Solution:

  • If the soil turns dry and compact, take a chopstick and aerate the soil. Poke some holes into the soil.
  • Then, you need to continuously water the plant for a few days to moisten the soil.
  • You can also recover the soil by taking the alocasia out of its pot and placing it in a large water-filled bucket. Keep the plant in the bucket for 30-45 minutes so the soil can thoroughly soak the water and become moist.
  • Avoid keeping your plant in a bright spot for a few days until the soil recovers.
  • Prune off your plant’s dead and dry leaves to reduce their stress level.
  • You can also add ingredients such as clayey soil or compost to increase the soil’s moisture retention capacity.

Also read: How To Water Alocasia Plant? (How Much, How Often & More)

3) Low light

Light is a crucial factor as it helps the plant generate energy for various physiological processes.

Alocasia needs bright, indirect light for growing.

However, the plant loses its leaves when exposed to low light conditions. 

In low light, they will not be able to perform photosynthesis properly, and as a result, their growth will slow down. 

The low light condition will further encourage overwatering.

Due to low light, the soil will remain wet for longer periods, and such conditions will attract bacteria and fungi to the plant.

Such adverse conditions will make the plant lose its leaves.

Solution:

  • You should immediately move your alocasia to a spot that provides bright, indirect light daily.
  • The ideal spot for keeping alocasia will be a south-facing window. This spot will provide your plant with ideal light throughout the day.
  • During winter, light levels are low inside the room. So you can place your plant outside for a few hours in the morning only if the temperature is suitable. 
  • Rotate your alocasia every week so that all the parts receive an equal amount of light.
  • You can also use artificial light if there is a shortage of natural light.

Also read: What Kind Of Light Does Alocasia Need? Alocasia Light Requirements

4) Pest infestations

Alocasia plant pest

Alocasias are prone to certain pests like aphids, mealybugs, spider mites, and scales.

These pests are known as sap-sucking insects as they feed on the plant sap.

The sap contains all the nutrients and water the plant needs for getting energy.

When the pests suck out the sap, the plant becomes very weak and vulnerable, losing all its leaves.

Pests will attack your alocasia in a moist or dry environment.

Factors such as low light, overwatering, and poor drainage can encourage the arrival of pests on your plant.

Pests are deadly, and if not treated on time, they can eventually kill your alocasia.

Solution:

  • One notable suspect behind the loss of leaves is pests. It is important to inspect your plant to check whether there are any pests.
  • If pests are present, wash your plant with a good shower.
  • Add insecticidal soap or dishwash soap in water, and wash your plant using this solution. This will help get rid of pests completely.
  • After you wash your plant, clean its leaves by using cotton swabs. Dip cotton swabs in alcohol and remove all the remaining pests.
  • Spray your plant with a Neem oil solution every month to keep pests away.
  • Keep your plant in a bright location and avoid keeping it in damp conditions.

Also read: How Do I Get Rid Of Bugs In Alocasia? (+Common Bugs Identification)

5) Wrong soil mix

Growing your alocasia in the wrong soil mix can adversely affect their health. 

Soil is the ultimate source of nutrition for plants, and using the wrong soil type can be the reason your plant loses its leaves.

Alocasia prefers loose, well-draining, well-aerated potting soil that remains evenly moist.

If the soil is too dry, the plant will get dehydrated, due to which its leaves will turn yellow and fall over.

If the soil is too heavy, it will remain wet for longer periods, forming the ideal condition for pests and diseases.

As a result, the leaves will lose their original vibrance and fall over.

Solution:

  • Choose a porous, well-draining, and well-aerated potting mix for your plant.
  • The ideal potting mix for alocasia will have one part of regular potting soil, one part perlite or sand, and one part peat moss.
  • The soil should be slightly acidic with a 5.5 to 6.5 pH.
  • If the soil is too compact, use sandy soil, gypsum powder, or brick powder to loosen it.
  • If the soil is too loose, use materials like manure and compost to improve the soil.

Also read: What Kind Of Soil Does Alocasia Need? (Ideal Soil Mix+Other Requirements)

6) Improper fertilization

Alocasia plant leaves turning brown

Both overfertilization and underfertilization can make the leaves of your alocasia fall off.

In case of under fertilization, the plant will not get enough nutrients for its growth and development, due to which it will become weak and will start to drop its leaves.

On the other hand, if you overfertilize your plant, its roots will get damaged due to the excess salt build-up in the soil. 

Such injuries will not be able to supply nutrients and water to the plant, due to which the plant becomes extremely weak and ends up losing its leaves.

Solution:

  • If you find white crystals on the soil surface, scrape off the top layer of the soil to remove those excess salts.
  • You should water the alocasia thoroughly to drain the excess fertilizer for a few days.
  • Avoid fertilizing your plant for a few weeks when the plant is recovering.
  • If the condition does not improve, you need to repot the plant in a new pot with fresh soil mix.
  • Fertilize your alocasia during its growing season with a diluted fertilizer with an NPK ratio of 20:20:20
  • Do not fertilize the plant during the winter season, as the plant remains dormant and does not need fertilizers for growth.

Also read: What Fertilizer To Use For Alocasia? (Ideal Fertilizer+Dosage Guide)

7) Unfavorable temperatures

Alocasias are tropical plants that need warm temperatures (65-85°F) to thrive.

They will not react well to extreme temperatures or sudden fluctuations. 

Exposing your alocasia to hot or cold drafts can stress it, due to which it will become weak and start dropping its leaves.

Placing the plant near refrigerators, frosty windows, air conditioners, and open doors or windows during winter can freeze their leaves.

On the other hand, exposing the plant to direct sunlight, radiators, heaters, and gas burners can make your Alocasia experience dehydration, leading to the loss of leaves.

The leaves will drop off as a sign of shock if the plant is exposed to unfavorable temperatures.

Solution:

  • Do not keep your alocasia near heaters, radiators, refrigerators, and air conditioners. The air from such devices can stress your plant and directly affect its health.
  • Do not place your plant too close to open windows in warm weather. The heat and sun rays coming from the window can harm your plant. Keep the plant a few feet away from the window, or use curtains to prevent exposure to direct sunlight.
  • Keep your plant away from leaking windowsills and open doors in freezing weather.
  • Keep the plant in a well-insulated room during winter.
  • Do not change the position of your plant frequently. If you continuously shift their location, it will become difficult for them to adjust to the changing temperatures.

8) Wrong pot size

Alocasia plant dying (2)

Alocasia can grow big, so they need pots with adequate space for their roots to grow.

If you use a small pot, the plant will get rootbound.

The roots will twist and grow in circles due to insufficient space.

The roots might start coming from the soil surface, and its pressure can break the pot.

In such a condition, the roots will be unable to supply water and nutrients to the plant, so it will start losing its leaves.

Solution:

The only solution to this problem is repotting.

Whenever you are repotting, choose a container that is 2 inches larger than the previous one.

If your plant is root-bound, you must remove it from the pot and untangle the roots.

After that, repot your plant in a new container with fresh soil mix.

Also read: What Kind Of Pot For Alocasia? (Pot Material & Ideal Pot Size)

9) Natural aging

Like any other houseplant, alocasia will start to lose its leaves at the end of its growing cycle.

It is quite a natural process and not something to worry about. 

The old leaves will fall and give their place to the new leaves.

The leaves will fall from the plant when it can no longer hold water and nutrients. 

It will turn yellow or brown, and you can prune off your plant.

Final words

You should provide your alocasia with proper care and attention to prevent the loss of leaves. You can do this by ensuring that the plant gets the correct growing conditions as per their needs.

If you notice alocasia leaves falling, don’t get worried and prune off all the dead and damaged leaves that won’t recover. Try to find out the actual cause behind this problem by inspecting your plant.

Look for symptoms, and as soon as you find the cause behind the loss of leaves, try to fix it by applying the correct solution.

Why Is My Alocasia Losing Leaves CausesHow To Fix Simplify Plants

Reference: Alocasia sanderianaAlocasia micholitziana.


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