Live to Plant

Why Are My Edamame Plant Leaves Turning Yellow?

Updated: July 3, 2022

Edamame, also known as soybeans, are a healthy and delicious snack that are becoming increasingly popular in many parts of the world. They are easy to grow and care for, making them a great choice for any gardener. However, if you notice the leaves on your edamame plants turning yellow, it can be a cause for concern. In this article, we will explore some of the reasons why your edamame plant leaves may be turning yellow.

Lack of Nutrients

One of the most common reasons why edamame plant leaves turn yellow is a lack of nutrients. Edamame plants require several key nutrients to grow and thrive, including nitrogen, phosphorus, and potassium. If your soil is lacking in any of these nutrients, it can cause the leaves on your edamame plants to turn yellow.

To remedy this issue, you can fertilize your soil with a balanced fertilizer that contains all of the necessary nutrients for edamame plants. Be sure to follow the instructions on the fertilizer package carefully to avoid over-fertilizing your plants.


Another common cause of yellowing edamame plant leaves is overwatering. Edamame plants prefer moist soil but can quickly develop root rot if they are consistently overwatered. This can lead to yellowing leaves and stunted growth.

To avoid overwatering your edamame plants, water them only when the top inch of soil feels dry to the touch. Additionally, make sure that your soil is well-draining and that your pots or garden beds have adequate drainage holes.

Pests and Diseases

Edamame plants are susceptible to a variety of pests and diseases that can cause yellowing leaves. Some common pests that plague edamame plants include aphids, spider mites, and whiteflies. These pests feed on the sap of the plant, causing yellowing leaves and stunted growth.

Diseases such as root rot, leaf spot, and powdery mildew can also cause yellowing leaves on edamame plants. To prevent these issues, make sure to keep your plants healthy by providing adequate nutrients and water, and use organic pest control methods when necessary.

Environmental Factors

Yellowing edamame plant leaves can also be caused by environmental factors such as excessive heat or cold. Edamame plants prefer temperatures between 60 and 75 degrees Fahrenheit and can suffer if exposed to temperatures outside of this range.

Additionally, exposure to too much sunlight or too little sunlight can cause yellowing leaves on edamame plants. Make sure to plant your edamame in a location that receives at least six hours of sunlight per day, but is not directly in the path of intense afternoon sun.


Can I still eat my edamame if the leaves are turning yellow?

Yes, you can still eat your edamame even if the leaves are turning yellow. However, it is important to address any underlying issues that may be causing the yellowing to prevent further damage to the plant.

How often should I fertilize my edamame plants?

Edamame plants should be fertilized every 4-6 weeks with a balanced fertilizer that contains nitrogen, phosphorus, and potassium.

Can I transplant my edamame plants?

Yes, you can transplant your edamame plants once they have reached a height of 3-4 inches. However, be sure to do so carefully to avoid damaging the roots.

In conclusion, yellowing edamame plant leaves can be caused by a variety of factors including lack of nutrients, overwatering, pests and diseases, and environmental factors. By addressing these issues promptly, you can help your edamame plants thrive and produce a bountiful harvest of delicious and nutritious soybeans.