Why Are My Begonia Leaves Curling?

You’ll surely are awed by the way that your Begonia is able to brighten your space by its vibrant, green leaves and vibrant flowers.

If you’re here, you’re probably aware that the leaves on your plant are beginning to wrinkle and drop.

Similar to my gorgeous Begonia – however, I was able to get it fixed, and I’ll be able to help you heal it too!

The most frequent reason for begonia leaves curling is because of underwatering. A plant that is underwatered isn’t able to remove water from the soil, and therefore cannot provide vital nutrients to the leaves. In addition, excessive minerals due to overfertilization, hard water, high temperatures, insects and diseases can cause Begonia leaves curl.

Find out the causes of Begonia leaves to curl, and determine the root cause that is causing destruction on your plant.

If you can pinpoint the root of the issue it’s possible to restore your beloved Begonia to health in no time!

Causes of Begonia Leaves Curling

These are the causes that can be the reason for curling the leaves of your begonia.

Underwatering Causes Begonia Leaves Curling

The watering process can cause that the Begonia’s leaves plant to curled. You can imagine that the plant that is drained of water is likely to dry out and one of the signs is curly leaves.

Another problem with underwatering is that the nutrients in the soil aren’t transported to the plant through the water.

This doesn’t just mean that your plant isn’t getting enough moisture however, it could also be suffering from an insufficient supply of nutrients – cue more curly leaves!

How to Fix

Examine the soil around the soil of your Begonia plant. The top layer of soil should be dry, but all the other soil must be damp.

If the remainder part of your soil has dried, then you are submerging your plant.

It’s important to remember that begonias thrive in an environment that is humid.

Even if the soil appears adequate in moisture, it could still not be receiving enough water.

To remedy this, you should regularly mist your Begonia, as in addition to watering in the traditional manner. A humidifier can also help!

begonia flowers

Overwatering Leads to Root Rot

It may appear to be it’s a good idea to give your Begonia a bath every day, but you could do much more damage than you’re doing by this normal behavior.

If Begonias are watered in excess, their roots begin to rot. This could cause curly leaves because the roots are unable to longer provide water or nutrients to the plant.

In addition, it could result in the water flushing the soil of vital nutrients.

Instead of allowing the plant absorb nutrients from the soil, it is cleansed of goodness by the excessive water! Therefore, deficient nutrients mean curly leaves.

Fortunately, overwatering is simple to correct. Follow these easy steps to prevent overwatering your plant:

How to Fix

  1. Water your Begonia only when the soil’s top layer is dry (up up to the knuckle, if you test it with your fingers).
  2. Be sure that you ensure that your Begonia is placed in a pot that has a good drainage. If the pot isn’t draining properly, the water won’t be allowed to escape and could cause root decay.
  3. Place your Begonia in an easy-to-pot mix that is described as free-draining. Avoid clay soil since it is prone to retaining excessive water.

This article provides more details about how to save the begonia that is overwatered.

Water Quality

Begonia plants are extremely sensitive to water that contains excessive amounts of minerals, chemicals, or excessive amounts of salt..

Most times, we’re not conscious of the chemicals or minerals present in water from the tap, however it’s not unusual to find the addition of fluoride or chlorine the water.

In addition to the added chemicals, certain areas contain water that is natural “harder”. The water that is hard has more mineral and salt levels.

Chemicals, as well as high salt and mineral levels that are found in water, can damage the Begonia plant. They can cause burns to the plant from within and cause curly and dry leaves.

How to Fix

Even if you’re in an area that has soft water, the chemicals in the water you drink could cause your Begonia’s leaves to curled. Try one of these:

  1. Recycle rainwater. If you are able to gather rainwater, you could make use of it to provide food for your Begonia. This is an excellent alternative since rainwater does not contain any of the harmful elements which cause leaves to curl.
  2. Purchase distilled water. Distilled water is filtered and is a better choice for your Beacon than the tap water.
  3. Make use of a water purifier. Filters that make use of carbon blocks can remove undesirable chemicals and minerals from your water, making it safe to drink for the Begonia.

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Excess Fertilizer Application

Begonias require an optimum fertilizer that supplies the plants with equal amounts of nitrogen, phosphorus, as well as potassium.

There is a possibility to fertilize too much Begonias by using the wrong kind of fertilizer, or through fertilization too often.

Begonias require dilute fertilizer in a ratio of 1 part fertilizer to 3 parts water. If they are fertilized too much, the formation of salt could be observed within the soil.

Salty food can have numerous negative consequences for your Begonia.

It could kill microorganisms in the soil that can be beneficial to your plant and also burn the roots of your plant.

In the end, your plant will be deficient in nutrients since roots aren’t able to remove them from the soil.

A Begonia that shows signs of overfertilization may show brown spots, and the edges of the leaves will begin to curled.

Check out this post to learn about the causes and ways to treat brown spots on the leaves of begonia.

How to Fix

  • Make sure you use a balanced fertilizer such as 10-10-10 to ensure that your Begonia is getting nutrients equally. A high concentration of one ingredient will hinder the ability of the plant to absorb the other.
  • Mix the fertilizer with 1 part fertilizer per 3 parts water. The fertilizer that is neat will be too heavy to be suitable for Begonia.
  • Fertilize your Begonia every month. A more frequent fertilization can result in the foliage of your Begonia to curl due to fertilizer’s inclusion of salt. If your plant is exposed to excessive amounts of salt, the leaves will become dry.

Lack of Nutrients

Begonias depend on a mix of nutrients to maintain excellent well-being.

A balanced proportion of nitrogen, phosphorus and potassium is essential to keep Begonias content.

If the nutrients are not there or the plant isn’t able to absorb them effectively and efficiently, the Begonia begins to appear weak and the leaves will begin to shrivel and curl, a painful appearance!

How to Fix

There are some steps to make sure that your Begonia gets the nutrients it requires.

  1. Be sure that you fertilize your plants once every month. Make sure to use a balanced fertilizer that provides equal amounts of nitrogen, phosphorus, as well as potassium.
  2. Examine the pH of the soil in your Begonia. If it’s not right, your Begonia will be unable to draw nutrients from the soil even if they’re present!
  3. It is possible to test your soil’s pH at home with an at-home test kit.
  4. Begonias are similar to soils and have a pH of 6.5.
  5. Incorporate lime to increase the pH level, and sulfur to lower it.

Temperature Stress

Begonias like temperatures that are cool. The ideal temperatures for them is between the 58-72degF range (14 22 – 22degC).

Not just that Begonias prefer being kept in a certain temp, they also be shocked when the temperature fluctuates too fast.

It can be caused by natural temperature fluctuations or the presence of drafts or heat source.

If your Begonia is too cold, the roots will not function properly. They’ll struggle to get the nutrients into the plant.

If the temperature is too hot, your plant may quickly drown and leaves could get scorched.

If the temperature fluctuates rapidly and your Begonia is in a state of shock, the normal processes of the plant are disrupted.

Any of these scenarios could cause the leaves of the Begonia plant to curled.

How to Fix

Keep an instrument for thermometers in your bag to check the temperature in the room in which you keep your Begonia.

If temperatures fall lower than 58 degrees (14degC) think about moving the plant into a warmer area or perhaps one with less windows or drafts.

If temperatures exceed 72degF (22degC) It’s the right time to act to keep your Begonia cool.

Transfer your plant to an area that is cooler and think about opening your windows in the mornings and evenings to let the colder air to circulate.

Beware of stress due to temperatures by not abruptly switching on the air conditioning or heating close to your Begonia.

Pot Size

Begonias require a pot that is approximately 6-8 inches (15 to 20cm)per plant. If the pot isn’t big enough, the roots won’t be able to develop properly and they will become roots bound.

If roots become rootbound, they become unable to carry vital nutrients and water into the body.

A pot that’s too small will also not hold enough nutrients within the soil.

In the event that you find that the Begonia is too large in its pot, it will rapidly eat all the nutrients present in the soil, and cause an insufficiency.

When your Begonia is placed in too big pot, it could be flooded. The reason for this is that the soil holds excessive water, and the plant is unable to utilize it.

In many cases, this can lead to root rot as root systems of Begonia are in the water over a long period of time.

The process of transferring plants into a too big an area too fast can create issues. Pots must be upgraded by one centimeter (2.5cm) at one time and as the plant grows.

Utilizing a huge container too quickly can cause fertilizer, nutrients and water being unevenly distributed in the soil.

Injured roots and deficiency in nutrients can cause the leaves of the Begonia plant to wrinkle and curly.

How to Fix

  • Take measurements of the size of the planter. If it’s smaller that 6-8 inches (15 to 20cm)then you will need to transfer your Begonia into a larger pot.
  • Do not increase the size of the pot more than 1 centimeter (2.5cm) at one time. If you do, it could be sized up too fast, which can create problems for the Begonia.
  • If you are unsure, take a measurement of the length of the Begonia’s root and select a container that be two inches (5cm) bigger on each side.

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Direct Sun Exposure Cause Sunburned Leaves

The majority of varieties of Begonia prefer to be placed in shade with indirect sunlight.

The direct sunlight could cause harm to the leaves of your Begonia by burning the leaves.

It could also cause the soil around your Begonia dry, which can cause the plant to get swollen.

Leaves of parched or scorched Begonia plant can be susceptible to curling when they are burned and then dry out.

The roots of plants that are dehydrated cannot supply enough water and nutrients.

If your Begonia does not get sufficient sunlight it won’t be able to perform photosynthesis. This process lets the plant use light to transform the nutrients it needs into food.

If you have a shortage of sunlight the plant will struggle to develop and become weak and fragile.

Your leaves from your Begonia will be affected: their growth will be slowed, they will turn brown, and you’ll notice the leaves drying out and curving.

How to Fix

It is easy to solve the issues caused by light exposure , by taking these actions:

  • Be sure that your Begonia isn’t placed on a window that is exposed to direct sunlight.
  • Do not hide your Begonia in the darkness. Set it up in a space which is bright in certain times of the day, and shaded in other times.
  • You might want to consider using sunshades on your windows if you are worried that your Begonia is directly to the sunlight and you cannot move it.
  • If you aren’t able to get enough light, you could make use of artificial light source to simulate sunlight. This will ensure that your Begonia will be capable of sustaining photosynthesis.

Diseases Can Cause Begonia Leaves Curling

Root and stem rot in Begonia is a fungal infection that can affect your plant.

The disease spreads by moisture and is caused by damp ground or cool weather.

If your Begonia is suffering with this disease , you’ll observe that the stem begins to shrink and then collapse. The physiological activity of your Begonia will slow down gradually, as well as it will begin to die. plant will start to end up dying..

The fungus causes the stem to retain water of the plant, and can cause destruction on the branches, stems, and leaves. Because of this injury, the leaves begin to wilt and curl.

How to Fix

Root and stem rot in Begonia aren’t widespread, however when your plant is affected, there is no cure.

The most effective course of action is to eliminate the plant and then start over.

To prevent fungal infections I suggest you take these preventive measures:

  • Clean your pots prior to making use of them.
  • Make sure that all tools are sterilized prior to making use of them. The disease may be spread through the leaves and stems and not only the roots.

So, watering cans spray bottles that mist, and so on. must be cleaned in the event that they contain spores from the fungus.

Begonia Leaves Curling Due to Insect Infestation

Aphids pose the greatest insect danger to Begonias. They consume plants’ leaves, and leave behind an ingredient that triggers the growth of mold.

Aphids eat nutrients from the plant which weakens it and causes damage. The spores they leave behind disrupts the process of photosynthesis.

In the end the Begonia will be unable to convert nutrients into food, and begin to shrink and then suffer.

Other insects could cause issues for your Begonia However, it is rare to find an infestation of them.

Slugs, snails and caterpillars eat away at leaves, and cause the leaves to fall.

How to Fix

If you suspect that you are suffering from an infestation of aphids, you must be on the lookout for indicators.

The leaves leave behind a sticky, black substance on the leaves that should be easy to identify.

  • In most cases, water alone can do wonders to wash the aphids off your Begonia.
  • If you are experiencing a greater aphid problem, you might need spray insecticidal soap onto the leaves.

Slugs, snails and caterpillars can be easily removed by hand.

It is highly unlikely to see an infestation of these bugs on your house plant, and getting rid of the one culprit will solve the issue.

How To Prevent Begonia Leaves Curling

Inadequate water quality, overwatering and exposure to light are the primary causes Begonia’s leaves plant to curled.

Most of the time, all that is required is to determine the quantity, and the quality of the water that is fed to the plant, and also the location that the facility is located. Easy!

Insect or disease-related problems can also cause leaves to curled. They can be addressed using specific products, and are usually easy to solve.

To avoid diseases from arising Proper sterilization of equipment and pots can stop the spread of fungus and diseases at the source.

Additionally, it’s an excellent idea to be aware of the dimensions of the pot for your Begonia to ensure it’s the correct size for the Begonia.

It’s a simple issue to tackle and can change the world.


What is the reason my Begonias turning brown?

Begonias can begin to wilt due to a variety of reasons. The primary reason for the wilting is that of water.

But, excessive watering, poor water quality, issues with light (either excessively or too small) and the wrong pot size may result in Begonias to die.

How often do I need to water my Begonia?

Begonias don’t generally require to be watered daily. In general, you must be sure to water your Begonia after the soil’s top layer (up to your fingernail) has dried out.

This can prevent overwatering and can be a great way to determine when you should keep your plant hydrated.

Do Begonias prefer shade or sun?

Begonias are a mixture of shade that is partially absorbed and indirect sunlight. For instance, a bright space that gets a couple of hours of sunlight every day.

It is best not to place the Begonia near direct sun since they aren’t a fan of high temperatures and this could cause drying out.


You’re now equipped with the right details to help bring back your beautiful Begonia Plant back to its full health.

Are you aware you’re leaves from your Begonia are beginning to curl? What advice did you use to revive your plant?



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