Mastering Fiddle Leaf Fig Brown Spots: Causes & Solutions

The Ultimate Guide to Fiddle Leaf Fig Brown Spots

Fiddle leaf figs, with their large, glossy leaves, make a bold statement in any room, whether it's a living room or office. However, despite their beauty, these plants are prone to a common issue—brown spots on the leaves. These unsightly marks can range from small, scattered patches to larger, more noticeable areas that affect both the plant’s health and appearance.

While the fiddle leaf fig brown spots can be frustrating, they are fixable. By identifying the underlying causes and implementing the right solutions, you can restore your plant’s health and vitality. Keep reading to learn how.

What Causes Brown Spots on Fiddle Leaf Fig

Brown spots on fiddle leaf figs often indicate the plant is under stress. Watering habits, light conditions, and care routines all play a role in the development of these spots. Identifying the root cause is key to providing the right care and preventing further damage.

Root Rot

Root rot is a common cause of brown spots on fiddle leaf fig leaves, typically resulting from overwatering or poor drainage. When the soil remains constantly soggy, the outer roots suffocate, weakening and eventually decaying. This disrupts the plant’s ability to absorb water and nutrients properly, leading to symptoms such as yellowing, wilting, and brown spots appearing on the leaves. 

Underwatering

Fiddle leaf fig without enough water

When a plant doesn’t receive enough water, it struggles to stay hydrated, resulting in several symptoms. The leaves may become dry and brittle, with brown, crispy edges. As dehydration continues, the leaf tissue deteriorates, causing further browning and, in some cases, leaf curling.

Humidity Levels

Fiddle leaf figs, native to tropical climates, thrive in warm, humid environments. In homes with low humidity, however, the plant struggles to retain moisture, causing the edges of the leaves to dry out and develop brown, crispy spots.

Light Issue

Fiddle leaf figs thrive in bright, indirect sunlight. Insufficient light weakens the plant, making it more susceptible to stress, which often appears as brown spots or yellowing leaves. Conversely, too much direct sunlight can cause sunburn. Prolonged exposure to intense sunlight can scorch the leaves, resulting in brown or yellow patches with dry, crispy edges.

Pest Infestations

aphids

Pests like spider mites, mealybugs, and aphids can cause significant damage to fiddle leaf figs. These pests feed on the plant by piercing its tissue and extracting sap, which weakens the plant and leads to discoloration. Their feeding often creates small brown or yellow spots on the leaves, accompanied by a speckled or stippled pattern.

Fungal Infections

Fungal infections can also affect fiddle leaf figs, particularly in warm, humid environments with limited airflow. These conditions provide an ideal breeding ground for fungi, allowing diseases to spread more easily. Common symptoms include dark brown or black spots on the leaves, usually bordered by a yellowish halo.

How to Treat Brown Spots on Fiddle Leaf Fig

Now that you’re familiar with the common causes of brown spots on your fiddle leaf fig, let’s explore the solutions for each issue.

Adjusting Watering Practices

Watering an fiddle leaf fig

Proper watering is crucial for your fiddle leaf fig’s health, but there’s no one-size-fits-all routine. A simple approach is to check the top inch of soil—water only when it’s dry. Additionally, ensure your pot has proper drainage to allow excess water to escape and prevent the roots from sitting in stagnant moisture. 

Improving Light Conditions

Place your fiddle leaf fig near a window with filtered light or in a room with reflected light to ensure it gets enough light without the risk of direct sunlight scorching its leaves. To encourage even growth, rotate the pot every few weeks so all sides of the plant receive adequate light.

Artificial light, especially LED grow lights, is an excellent option for your houseplants. These expert plants grow lights mimic the spectrum plants need while producing minimal heat, providing sufficient light to promote healthy growth without the risk of scorching the leaves.

Boost Humidity Level

To boost humidity, consider using a humidifier near your plant to increase the moisture level in the air. Alternatively, you can place a shallow water tray near the plant or occasionally mist the leaves to provide extra moisture. Be cautious not to overdo it with misting, as excessive moisture on the leaves can encourage fungal growth.

Managing Pests

Wiping the fiddle leaf fig leaves

Regularly inspect your fiddle leaf fig for pests, paying special attention to the undersides of the leaves where they tend to hide. If you find any pests, act quickly to remove them. Wipe the leaves with a mixture of water and insecticidal soap or neem oil. To prevent further infestations, consider isolating the affected plant from others in your collection.

Treating Fungal Issues

If you notice signs of fungal disease, take immediate action to prevent it from spreading. Begin by removing any infected leaves. Then, treat the plant with a fungicide or a natural remedy like a diluted baking soda spray. To make the spray, mix one tablespoon of baking soda with a gallon of water and apply it to the affected areas.

FAQs about Fiddle Leaf Fig Brown Spots

Q1: How often to water fiddle leaf fig?

Water your fiddle leaf fig every 1-2 weeks, depending on the moisture level of the soil. During the growing season (spring and summer), you may need to water more frequently, while in the dormant season (fall and winter), less frequent watering is sufficient.

Q2: How to tell if a fiddle leaf fig has root rot?

Root rot is indicated by mushy, brown, or black roots, along with wet or smelly soil. The plant may also show signs of discolored, wilted leaves or brown spots.

Q3: Should I remove brown leaves on fiddle leaf fig?

Yes, pruning damaged leaves helps improve the plant's overall appearance and encourages healthy growth. Just be sure to use clean, sharp scissors or pruning shears to avoid introducing any infection.