Updated: July 27, 2023

Laurel plants, also known as bay laurel or sweet bay, are popular choices for both indoor and outdoor gardens. These versatile plants are loved for their aromatic leaves, which are often used in cooking. However, one common issue that laurel plant owners may face is yellowing leaves. If you’ve noticed that your laurel plant’s leaves are turning yellow, it’s important to understand the potential causes and how to address them.

Lack of Water

One of the most common reasons for laurel plant leaves turning yellow is a lack of water. Like most plants, laurels require consistent moisture to thrive. If the soil becomes too dry, the plant will begin to show signs of stress by turning its leaves yellow.

To remedy this issue, it’s important to ensure that your laurel plant is receiving an adequate amount of water. Check the moisture level of the soil regularly by sticking your finger into the soil up to the first knuckle. If it feels dry at that depth, it’s time to water your plant. Be sure to water thoroughly, allowing the excess water to drain out of the pot or away from the roots if it’s planted outdoors.

Overwatering

While a lack of water can cause yellowing leaves, overwatering can also be a culprit. Overly wet soil can lead to root rot, which inhibits the plant’s ability to absorb nutrients properly and causes the leaves to turn yellow.

To prevent overwatering, make sure that your laurel plant is potted in well-draining soil and that its pot has drainage holes. This will allow excess water to escape and prevent waterlogged soil. Additionally, avoid watering on a strict schedule and instead rely on checking the soil’s moisture level before watering.

Nutrient Deficiency

Another possible cause for yellowing laurel plant leaves is a nutrient deficiency. Plants require a balanced supply of essential nutrients to maintain their health and vibrant foliage. If your laurel plant is not receiving enough of these nutrients, its leaves may start to yellow.

To address this issue, consider fertilizing your laurel plant. Choose a balanced fertilizer specifically formulated for houseplants or outdoor plants, depending on where your laurel is located. Follow the instructions on the fertilizer package carefully, as over-fertilization can also cause damage to the plant. Regularly feeding your laurel plant with the appropriate fertilizer will help provide it with the necessary nutrients and promote healthy leaf growth.

Pests

Pest infestations can also cause yellowing leaves in laurel plants. Common pests that may affect laurels include aphids, scale insects, and spider mites. These insects feed on the sap of the plant, which can cause nutrient deficiencies and result in yellowing leaves.

Inspect your laurel plant regularly for signs of pests, such as small insects, sticky residue on the leaves, or webs. If you detect an infestation, treat it promptly using an appropriate insecticide or by using natural pest control methods. Regularly cleaning the leaves with a gentle soap solution can also help prevent pest infestations.

Environmental Stress

Laurel plants are typically hardy and can tolerate a range of environmental conditions. However, they may still experience stress if exposed to extreme temperatures, drafts, or sudden changes in light levels. This stress can manifest as yellowing leaves.

To minimize environmental stress, keep your laurel plant in a location with consistent temperatures and avoid placing it near heating or cooling vents. Additionally, make sure your plant is not exposed to direct sunlight for extended periods, as this can also cause leaf discoloration. Providing a stable and suitable environment for your laurel plant will help prevent yellowing leaves caused by environmental stress.

Disease

While relatively resistant to diseases, laurel plants can still be susceptible to certain fungal infections, such as powdery mildew or leaf spot. These diseases can cause yellowing and browning of the leaves.

If you suspect that your laurel plant has a disease, it’s crucial to take action promptly. Remove any affected leaves and dispose of them properly to prevent the spread of the infection. Consider applying a suitable fungicide according to the manufacturer’s instructions to control the disease. Maintaining good air circulation around the plant and avoiding overhead watering can also help prevent fungal infections.

In conclusion, if you notice that your laurel plant’s leaves are turning yellow, it’s essential to investigate the potential causes and address them accordingly. Lack of water, overwatering, nutrient deficiencies, pests, environmental stress, and diseases are all factors that can contribute to yellowing leaves. By identifying the root cause and taking appropriate action, you can help your laurel plant regain its health and vibrant foliage. Remember to provide adequate water, proper nutrients, a suitable environment, and regular care to keep your laurel plant thriving.