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Why Does my Coral Bells Plant Have Brown Spots?

Updated: December 23, 2022

Coral bells, also known as Heuchera, are a popular perennial plant that is loved for its colorful foliage and small bell-shaped flowers. However, if you notice brown spots on the leaves of your coral bell plant, it can be concerning. Brown spots on the leaves can be a sign of several problems that can affect the health and appearance of your plant. In this article, we will discuss some of the most common reasons why your coral bell plant has brown spots.


One of the most common reasons why coral bell plants develop brown spots is overwatering. When the roots of the plant are constantly submerged in water, they can become waterlogged, leading to a lack of oxygen to the roots. This can cause root rot, which can cause brown spots on the leaves.

To avoid overwatering your coral bell plant, make sure to water it only when the soil is dry to the touch. It’s essential to provide adequate drainage to allow excess water to escape from the pot.

Fungal Infections

Fungal infections are another common cause of brown spots on coral bell plants. Fungi thrive in moist environments and can quickly spread if left untreated. Fungal diseases that commonly affect coral bells include powdery mildew and rust disease.

To prevent fungal infections, keep your plant in a well-ventilated area with good air circulation. Avoid watering from above and remove any infected leaves as soon as you notice them.


Coral bells prefer partial shade or filtered sunlight. If they are exposed to direct sunlight for an extended period, they can develop brown spots on their leaves. This is because too much sunlight can cause sunburned leaves that eventually turn brown.

If your coral bell is in direct sunlight, move it to a shadier area or provide shade with a canopy or umbrella.


Pests like spider mites and aphids can also cause brown spots on coral bell plants. These pests feed on the plant’s leaves, causing damage that can lead to brown spots.

To prevent pest infestations, make sure to keep your coral bell plant clean and healthy. Regularly inspect the plant for any signs of pests and take immediate action if you notice any.

Nutrient Deficiencies

Coral bells require specific nutrients to maintain healthy growth and appearance. If the plant is not receiving enough nutrients, it can develop brown spots on its leaves. The most common nutrient deficiencies that affect coral bells are iron and magnesium.

To correct nutrient deficiencies, fertilize your plant with a balanced fertilizer that contains iron and magnesium.

Frequently Asked Questions (FAQs)

How do I know when my coral bell plant needs watering?

One way to tell when your plant needs watering is by touching the soil. If the top inch of soil is dry to the touch, it’s time to water your plant.

How often should I fertilize my coral bell plant?

It’s recommended to fertilize your coral bell plant once a month during the growing season (spring and summer).

Can I prune my coral bell plant?

Yes, you can prune your coral bell plant to remove dead or damaged leaves. It’s best to prune in the spring before new growth begins.

Can I transplant my coral bell plant?

Yes, you can transplant your coral bell plant. It’s best to do this in the spring or fall when the weather is mild. Make sure to water your plant well before transplanting and provide adequate care after transplanting.

In conclusion, brown spots on coral bell plants can be caused by several factors, including overwatering, fungal infections, sunburn, pest infestations, and nutrient deficiencies. By understanding these causes, you can take the necessary steps to prevent and treat brown spots on your coral bell plant. With proper care, your coral bell plant will thrive and continue to add beauty to your garden for years to come.