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How to Pollinate Edamame Plant:
Increase Your Yield

Updated: March 25, 2022

Edamame is a popular and nutritious vegetable that has been enjoyed by many people for centuries. However, it can be frustrating when your edamame plants don’t produce as much yield as you expected. One of the reasons for this could be the lack of pollination. Pollination is essential for the production of edamame beans, and without it, you may end up with very few or no beans at all. In this article, we will discuss the process of pollinating edamame plants and how to increase your yield.

What is Pollination?

Pollination is the transfer of pollen from the male part of the flower (stamen) to the female part (pistil). This transfer is necessary for fertilization to occur, resulting in the formation of seeds or fruit. In edamame plants, pollination is essential for the formation of beans.

Natural Pollinators

In their natural habitat, edamame plants are pollinated by insects such as bees, butterflies, and moths. These insects are attracted to the flowers by their color and fragrance, and they help in transferring pollen from one flower to another. However, if you are growing edamame plants in a greenhouse or indoors, you may not have access to these natural pollinators.

Hand Pollination

Hand pollination is a simple and effective way to ensure that your edamame plants produce a good yield. All you need is a small brush or cotton swab. Here’s how to hand-pollinate your edamame plants:

  1. Identify the flowers that need to be pollinated. Edamame flowers are typically small and white or greenish-yellow in color.
  2. Gently brush the inside of each flower with the brush or cotton swab, making sure to transfer pollen from the stamen to the pistil.
  3. Repeat the process for all the flowers in the plant.

Hand pollination should be done early in the morning when the flowers are fresh and open. You should also avoid pollinating on rainy or windy days as this may affect the transfer of pollen.

Increase Your Yield

Pollination is not the only factor that affects edamame yield. Here are some other tips to increase your yield:

Proper Plant Spacing

Edamame plants require adequate space to grow and develop properly. Make sure to space your plants at least 6 inches apart to allow room for proper air circulation and sunlight penetration.


Edamame plants require a balanced fertilizer to thrive. Use a fertilizer that is rich in nitrogen, phosphorus, and potassium. Apply the fertilizer according to the manufacturer’s instructions.


Edamame plants require regular watering, especially during dry spells. Make sure to water your plants deeply, but avoid overwatering as this may cause root rot.

Pest Control

Pests such as aphids, spider mites, and thrips can cause significant damage to edamame plants. Use organic pest control methods such as neem oil or insecticidal soap to keep these pests under control.


Can I use a paintbrush instead of a cotton swab for hand-pollination?

Yes, you can use a paintbrush or any other small brush to pollinate your edamame plants.

How often should I fertilize my edamame plants?

It depends on the type of fertilizer you are using. Follow the manufacturer’s instructions for proper application.

Can I grow edamame indoors?

Yes, you can grow edamame indoors or in a greenhouse as long as they receive adequate sunlight and air circulation.

In conclusion, pollination is essential for the production of edamame beans, and hand-pollination is a simple and effective way to ensure a good yield. By following the tips provided in this article, you can increase your edamame yield and enjoy a bountiful harvest.