Why Is My Peace Lily Flower Turning Brown? 5 Reasons Explained

The peace lily flower may turn brown due to overwatering, underwatering, excessive sunlight exposure, low humidity, or an aging flower. Overwatering can cause root rot and lead to browning, while underwatering can cause dehydration.

Excessive sunlight can scorch the leaves and flowers, resulting in browning. Low humidity levels can cause the flower to struggle, and as it ages, it may naturally turn brown.

Lack Of Proper Watering

Proper watering is crucial for the health and vitality of your peace lily plants. However, if you notice that your peace lily’s flowers are turning brown, it may be an indication that you are not watering it correctly. In this section, we will delve into two common watering issues – overwatering and underwatering – that can cause the flowers of your peace lily to turn brown.


Overwatering is a common mistake that many peace lily owners make. While it is important to keep the soil consistently moist, excessive water can lead to a variety of problems. First and foremost, overwatering can suffocate the roots and prevent them from receiving enough oxygen. This can cause the browning of the flowers and yellowing of the leaves. Additionally, overwatering can create a breeding ground for root rot, which further damages the plant.

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If you suspect that overwatering is the cause of your peace lily’s brown flowers, there are a few signs to look out for. Check the moisture level of the soil by inserting your finger about an inch deep. If it feels sopping wet, chances are you are overwatering. Another indication is if the pot feels unusually heavy or if you notice standing water in the drainage tray.

To remedy the issue of overwatering, adjust your watering routine accordingly. Allow the top inch of soil to dry out before watering again. Ensure proper drainage by using a well-draining potting mix and a container with drainage holes. If you have a tendency to overwater, consider using a moisture meter to accurately gauge the moisture level of the soil.


On the other hand, underwatering can also be a culprit behind the browning of peace lily flowers. If your peace lily is not receiving enough water, it can become stressed and exhibit signs of dehydration. The flowers may turn brown, and the leaves may droop or become crispy. Underwatering can also make your peace lily more susceptible to pests and diseases.

To determine if underwatering is the cause of the flower browning, check the moisture level of the soil as mentioned earlier. If it feels dry to the touch and the plant appears wilted, it’s time to water your peace lily.

To properly water your peace lily, thoroughly soak the soil until water drains out of the bottom of the pot. Empty the drainage tray to prevent water from sitting in it. Repeat this process when the top inch of soil feels slightly dry. Remember, consistency is key – try to maintain a regular watering schedule to keep your peace lily happy and healthy.

In conclusion, both overwatering and underwatering can cause the flowers of your peace lily to turn brown. By understanding the importance of proper watering and adjusting your routine accordingly, you can help prevent and remedy this issue, allowing your peace lily to thrive and display its beautiful, vibrant flowers.

Inadequate Lighting Conditions

One of the most common reasons why peace lily flowers turn brown is inadequate lighting conditions. Peace lilies are known for their preference for indoor spaces with ample, indirect sunlight. When these conditions are not met, the health and appearance of the plant can be negatively affected. In this section, we will delve into two lighting-related issues that could be causing your peace lily flowers to turn brown – lack of sunlight and excessive sunlight exposure.

Peace Lily Flower Turning Brown

Lack of sunlight

Peace lilies thrive in environments where they receive sufficient, indirect sunlight. Unfortunately, inadequate exposure to natural light can hinder the plant’s ability to thrive. The lack of sunlight can disrupt the photosynthesis process, leading to discolored and browning flowers. If your peace lily is placed in a room with limited access to natural light, consider relocating it to a brighter spot. A location near a north or east-facing window can provide the right amount of gentle sunlight without subjecting the plant to intense direct rays that could potentially scorch the leaves.

Excessive sunlight exposure

While peace lilies require sunlight, excessive exposure to direct sunlight can also cause their flowers to turn brown. This happens when the plant is subjected to intense, harsh sunlight for extended periods. The rays of the sun can not only scorch the leaves but also cause the flowers to wither and discolor. If your peace lily is placed near a south or west-facing window, it may be receiving too much direct sunlight. Consider moving it slightly away from the window or using sheer curtains to filter the intense rays. This will allow the lily to enjoy a healthy balance of light.

Remember that maintaining an adequate lighting balance is crucial for the overall health and longevity of your peace lily. By ensuring the right amount of sunlight, you can prevent the disheartening browning of the flowers and keep your peace lily looking vibrant and healthy.

Also Read : Peace Lily (Spathiphyllum): Care, Grow, Lifespan, Propagation, Benefits

Low Humidity Levels

Dry indoor air

One of the main reasons why your peace lily flower might be turning brown is due to low humidity levels. Peace lilies are tropical plants that thrive in environments with high humidity. When exposed to dry indoor air, the lack of moisture can cause the flower to turn brown and wither. To better understand why this happens, let’s take a closer look at the effects of dry indoor air on peace lilies.

Lack of humidity

Dry indoor air lacks the necessary humidity that peace lilies require for optimal growth. In their natural habitat, these plants typically grow in rainforests or areas with high levels of moisture in the air. As a result, peace lilies have adapted to thrive in such environments. When you bring a peace lily into your home or office, it is important to recreate the ideal humidity levels it needs to survive.

Without enough humidity, the flower will start to show signs of distress. The lack of moisture in the air causes the water in the plant to evaporate faster than it can be absorbed, leading to dehydration. As a defense mechanism, the peace lily will start to shut down certain processes, such as flower production, to conserve energy and water.

How to combat low humidity levels

If you notice that your peace lily’s flower is turning brown due to low humidity levels, don’t worry! There are several ways you can increase the humidity around your plant to create a more favorable environment:

  1. Group your plants together: Placing multiple plants together can create a micro-environment with increased humidity through transpiration.
  2. Mist the leaves: Regularly misting the foliage of your peace lily can help increase humidity levels. Use a spray bottle to lightly mist the leaves, taking care not to saturate them.
  3. Use a humidifier: Investing in a humidifier is a great way to maintain the ideal humidity levels for your peace lily. Choose a humidifier with adjustable settings to control the humidity level effectively.
  4. Place the plant on a pebble tray: Fill a tray with water and place pebbles or stones on it. Then, position your peace lily’s pot on top of the pebbles. As the water evaporates, it will create a humid microclimate around the plant.
  5. Avoid air drafts: Keep your peace lily away from air-conditioning vents, heaters, or fans that can dry out the air. Optimal air circulation is important, but direct exposure to dry air can harm the plant.

By implementing these measures, you can increase the humidity levels around your peace lily and prevent its flowers from turning brown. Providing adequate humidity will create a healthier environment for your plant, allowing it to thrive and produce beautiful, vibrant flowers.

Nutrient Deficiencies

Lack of fertilizer

If your peace lily flower is turning brown, one possible reason could be a lack of fertilizer. Peace lilies are heavy feeders and require regular doses of nutrients to thrive and produce vibrant, healthy flowers. When they don’t receive enough fertilizer, their growth can be stunted, and their flowers may start to turn brown.

To prevent this problem, it’s important to provide your peace lily with the right amount of fertilizer at the right time. Typically, peace lilies should be fed every month during the growing season, which is usually spring and summer. However, it’s important not to over-fertilize as it can burn the plant’s roots and cause more harm than good.

Incorrect fertilization

Another reason your peace lily flower may be turning brown is incorrect fertilization. This can happen if you’re using the wrong type of fertilizer or applying it incorrectly. Peace lilies prefer a balanced, water-soluble fertilizer with an equal ratio of nitrogen, phosphorus, and potassium (N-P-K).

To ensure correct fertilization, follow the instructions on the fertilizer packaging carefully. Dilute the fertilizer with water according to the recommended ratio and apply it to the soil around the base of the plant. Avoid getting the fertilizer on the leaves as it can cause leaf burn.

It’s also essential to consider the quality of water you’re using to dissolve the fertilizer. Peace lilies are sensitive to chemicals and minerals found in tap water, such as chlorine and fluoride. If using tap water, let it sit overnight to allow these chemicals to dissipate before using it. Alternatively, you can use distilled or filtered water for your peace lily.

In summary, nutrient deficiencies can cause peace lily flowers to turn brown. Lack of fertilizer and incorrect fertilization are two common reasons behind this issue. By providing the right amount of balanced fertilizer and following proper fertilization techniques, you can help your peace lily maintain its vibrant blooms and prevent browning.

What does an overwatered peace lily look like?

Here are some other factors that can contribute to brown peace lily flowers:

  1. Improper watering: Peace lilies prefer moist soil but can suffer if overwatered or allowed to dry out completely.
  2. Insufficient light: Peace lilies require bright but indirect light. Lack of proper lighting can weaken the plant and lead to browning.
  3. Temperature extremes: Peace lilies prefer temperatures between 65-85°F (18-29°C). Exposure to extreme heat or cold can cause flower discoloration.
  4. Root problems: Issues such as root rot, overcrowding, or a lack of drainage can affect the health of the plant and result in browning flowers.

Pest Infestation

Common Pests Affecting Peace Lilies

If you’ve noticed your peace lily’s flowers turning brown, a pest infestation could be to blame. Common pests that affect peace lilies include spider mites, aphids, and mealybugs. These tiny creatures may seem harmless at first, but they can wreak havoc on your plant if left untreated.

Symptoms and Treatment Options

When your peace lily is infested with pests, there are a few telltale signs to look out for. These include:

1. Spider Mites: These minuscule pests leave behind a fine webbing on the leaves and flowers of your peace lily. They may also cause leaves to turn yellow and wilt. To treat spider mites, gently wipe down the foliage with a mixture of water and mild soap. You can also try using a neem oil solution to control the infestation.

2. Aphids: Aphids are small, soft-bodied insects that often cluster together on the undersides of leaves. They feed on the sap of your peace lily, causing leaves to curl and distort. To eliminate aphids, you can introduce natural predators like ladybugs or use insecticidal soap. Additionally, spraying a mixture of water and dish soap directly on the affected areas can help control their population.

3. Mealybugs: Mealybugs are white, fuzzy insects that feed on the sap of your peace lily, leaving small, cotton-like masses on the plant. They can cause leaves to yellow and become distorted. To get rid of mealybugs, you can remove them manually by wiping them off with a cotton swab dipped in alcohol. Alternatively, use horticultural oil or insecticidal soap to treat the infestation.

Taking preventive measures such as regularly inspecting your peace lily for any signs of pests and maintaining good plant hygiene can help prevent infestations. Remember to keep your peace lily clean, well-watered, and properly fertilized. By following these steps, you can ensure that your peace lily remains healthy and pest-free for years to come.

Frequently Asked Questions

Why Are The Leaves Of My Peace Lily Turning Brown?

The leaves of a Peace Lily can turn brown due to overwatering, underwatering, exposure to direct sunlight, low humidity, or nutrient deficiencies. It’s important to ensure proper watering, provide indirect light, maintain humidity, and feed the plant regularly to prevent leaf browning.

How Do I Know If My Peace Lily Is Getting Too Much Sunlight?

You can tell if your Peace Lily is getting too much sunlight if you notice the leaves turning yellow or brown and developing dry or crispy edges. Move the plant to a spot with indirect or filtered light to protect it from excessive sun exposure.

What Should I Do If My Peace Lily’S Flowers Are Turning Brown?

If your Peace Lily’s flowers are turning brown, it’s likely due to the natural aging process. Simply remove the faded flowers by snipping them off at the base of the stalk to promote new growth. Ensure proper care, including proper watering and lighting, to keep the plant healthy and encourage new blooms.


To prevent your peace lily’s flowers from turning brown, it is crucial to identify and address the underlying causes. From improper watering and lighting conditions to high temperatures and pests, several factors can contribute to this issue. By understanding these reasons and implementing the necessary steps to mitigate them, you can ensure vibrant and healthy blooms for your peace lily.

Remember to provide adequate moisture, moderate sunlight, and a pest-free environment. With proper care, your peace lily will continue to adorn your space with its beautiful white flowers.


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