Why are my angel wing begonia leaves turning yellow? Reasons and solutions.

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Why Are Angel Wing Begonia Leaves Turning Yellow

If you are a plant enthusiast, there’s nothing more alarming than noticing your beloved Angel Wing Begonia’s leaves turning yellow. As an incredibly popular indoor plant, maintaining the vibrant health of this tropical beauty can sometimes pose interesting challenges.

The fluctuating shade of the leaves not only impacts the plant’s aesthetics but also signals potential underlying issues. Are we overwatering, underwatering, or is it something else entirely? Strap in, we’re about to delve into this intriguing plant mystery!

Why Are Angel Wing Begonia Leaves Turning Yellow?

1. Overwatering

Description Overwatering causes yellowing leaves due to excess moisture leading to root rot and nutrient deficiencies.
Solution Reduce watering frequency to prevent root rot and maintain healthy green leaves for your plant.

Overwatering is one of the main reasons why the leaves of an angel wing begonia may turn yellow. This condition is harmful for the plant because it saturates the soil, depriving the roots of necessary oxygen. This will lead to root rot and eventual plant decay which manifests as yellowing leaves.

Reduce the frequency of your watering and check the moisture level of the soil prior to watering, to ensure it’s needed. The soil should be allowed to dry out slightly between waterings. Additionally, check to be sure your pot has good drainage, as stagnant water in the base of a pot can be as harmful as overwatering. If you find that the plant is overwatered and the roots are decaying, you may need to prune the affected roots and transfer the plant to a fresh pot. Use a well-draining soil mix for your angel wing begonia. Regularly monitor your plant to prevent overwatering in the future.

2. Nutrient deficiency

Description Insufficient nutrients cause yellowing of angel wing begonia leaves.
Solution Provide a balanced fertilizer to address nutrient deficiency and prevent yellowing of angel wing begonia leaves.

A nutrient deficiency in Angel Wing Begonias can cause their leaves to turn yellow. This indicates the lack of essential nutrients required for the plant’s growth and overall health. Particularly, insufficiency of nitrogen, iron, and magnesium can lead to yellowing of leaves as these nutrients are vital for the development of chlorophyll, the green pigment responsible for photosynthesis.


To rectify nutrient deficiency, ensure that you are providing a balanced fertilizer to your Begonias. A balanced fertilizer contains the right amounts of nitrogen, phosphorous, and potassium, which the plant needs for optimal growth. For example, a 10-10-10 (N-P-K) fertilizer is typically ideal. Also, ensure that your plants are getting enough magnesium by incorporating Epsom salts into your watering schedule occasionally. Be careful not to overfertilize as it may burn the roots and cause further harm to the plant.

Remember to examine the watering schedule as well. Overwatering can also contribute to yellowing leaves. The soil should remain moist but never soggy. Make sure your Begonia’s pot has proper drainage, as sitting in water can contribute to nutrient deficiency by leaching essential nutrients away from the plant.

Most importantly, ensure that they receive enough light. Insufficient sunlight can inhibit the plant’s ability to produce chlorophyll, leading to yellowing leaves. However, these plants should avoid direct sunlight as it may scorch their leaves. A bright, indirect light is best for Angel Wing Begonias.

In conclusion, maintaining a balanced fertilizer routine, appropriate watering schedule, and providing sufficient indirect light can help prevent and treat yellowing leaves due to nutrient deficiency in Angel Wing Begonias.

3. Excessive sunlight exposure

Description Excessive sunlight exposure causes angel wing begonia leaves to turn yellow due to sunburn.
Solution Provide shaded environment to prevent excessive sunlight exposure and avoid yellowing of angel wing begonia leaves.

Effects of Excessive Sunlight
The angel wing begonia is a plant that prefers bright, indirect sunlight. If it is exposed to direct, intense sunlight for prolonged periods, the leaves can become scorched, resulting in their yellowing. This is a sign of stress and damage to the plant caused by ultraviolet radiation.

Solutions for Excessive Sunlight Exposure
Moving the plant to a location that receives less direct sunlight can remedy this issue. Ideal spots are those with filtered, indirect sunlight, such as near north-facing windows. You can also protect the plant using sheer curtains or blinds. Regularly rotating the begonia helps it receive equal light distribution and prevents one side from getting overly stressed. Proper Watering is also crucial to compensate for possible dehydration caused by sun exposure. Water the plant when the top inch of its soil feels dry, but be careful not to waterlog it since this can promote root rot. If yellowing persists, it may be worth Checking the plant’s overall health for potential pests or diseases.

4. Pest infestation

Description Excessive sunlight exposure causes angel wing begonia leaves to turn yellow due to sunburn.
Solution Provide shaded environment to prevent excessive sunlight exposure and avoid yellowing of angel wing begonia leaves.

Angel wing begonia leaves may turn yellow due to a pest infestation. Pests such as spider mites, mealy bugs, and aphids can suck out the plant’s vital nutrients, causing the leaves to yellow and eventually fall off.

To remedy this, begin by physically removing pests if possible, using a soft cloth or delicate brush. For a more substantial infestation, you may need to use insecticidal soap or neem oil, both of which are effective yet gentle on the plants. To prevent future infestation, ensure the plant is in a healthy environment with appropriate light, temperature, and humidity. Also, keep an eye out for early signs of pests and treat them early before they become a major problem.

Why Are Angel Wing Begonia Leaves Turning Yellow

5. Poor drainage

Description Provide shaded environment to prevent excessive sunlight exposure and avoid yellowing of angel wing begonia leaves.
Solution Improve drainage to prevent yellowing of angel wing begonia leaves.

Angel Wing Begonia leaves can turn yellow due to poor drainage. When the plant’s soil remains consistently wet, it leads to a condition called waterlogging. This excess water hampers the ability of roots to effectively take up oxygen, leading to their loss of function and consequent weakening of the plant. This weak state can reflect in the yellowing of the leaves.

To resolve this, improve your drainage system. Firstly, ensure that your plant pots have sufficient drainage holes. If it’s still not enough, consider moving the plant to a pot with larger or more holes. Additionally, be mindful of your watering schedule – aiming to keep the soil moist but not soggy. Consider using a well-draining soil mixture that contains perlite or coarse sand which can help to remove excess water. Lastly, placing your pots in a tray filled with pebbles and water can increase the humidity around your plants without waterlogging the soil.

6. Temperature stress

Description Temperature stress can cause the leaves of angel wing begonia to turn yellow.
Solution Adjust temperature to optimal range and provide adequate humidity to prevent yellowing of angel wing begonia leaves.

Angel Wing Begonia leaves can turn yellow due to temperature stress. These plants prefer warmer conditions, ideally between 60-85°F. If the temperature falls outside this range, particularly if it becomes too cool, the leaves can turn yellow as a response to the stress.

If temperature stress is causing the yellowing, you need to adjust the environment to fit the plant’s needs. Move the plant to a warmer location if it’s too cold. You also need to avoid drastic temperature changes to prevent further stress. Using a thermostat can help maintain a consistent temperature. It’s also important to make sure the plant isn’t near drafty windows or doors, air conditioners, or heating vents, as these can cause sudden changes in temperature.

7. Aging foliage

Description The specific reason that makes the leaf turn yellow is aging foliage due to chlorophyll breakdown.
Solution Increase watering to provide sufficient moisture and nutrients, and prune dead leaves regularly for optimal growth.

One reason why Angel Wing Begonia leaves may be turning yellow is due to improper watering. Watering inconsistencies, whether too much or too little, can lead to stress on a begonia plant, causing the leaves to yellow. Overwatering often results in waterlogged soil and root rot, depriving the roots of oxygen. On the other hand, underwatering can lead to dehydration, and as a plant becomes too dry, its leaves can also turn yellow.

In managing this, first check your plant’s watering needs by sticking your finger into the top inch of soil. If it is dry, water the plant thoroughly. However, if it is wet, let the plant dry out before watering again. Make sure your plant is in well-draining soil and a pot with drainage holes to prevent waterlogging. Consistent, balanced watering is key. Adjust your watering habits according to the plant’s needs and environment, paying attention to temperature and humidity levels. This way, adequate water supply will eventually restore your Angel Wing Begonia back to its vibrant color.