How to Pollinate Tomatoes by Hand to Boost Your Harvest (2024)

  • Gardening
  • Edible Gardening
  • Vegetable Gardening

Pollinating tomatoes by hand can ensure that more fruit develops.

By

Megan Hughes

How to Pollinate Tomatoes by Hand to Boost Your Harvest (1)

Megan Hughes

Megan Hughes has a passion for plants that drives her to stay on top of the latest garden advancements and time-tested ways of growing great plants. She travels regularly to learn about new plants and technology and is closely connected to the innovation side of the horticulture industry. She has more than 25 years of experience in horticulture.

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Updated on June 23, 2023

Sun-ripened tomatoes are the result of thousands of pollen grains moving at just the right time to pollinate flowers. All types of tomatoes—from beefsteaks that are larger than your hand to bite-size grape tomatoes—are usually pollinated by insects or the wind. But when pollen doesn’t naturally get where it needs to go, you’ll end up with flowers but no fruit. In this case, a little human intervention may be needed. This guide will show you how to pollinate tomatoes by hand to increase your harvest.

How to Pollinate Tomatoes by Hand to Boost Your Harvest (2)

Are Tomatoes Self Pollinating?

Similar to related plants such as eggplants and peppers, each tomato flower has both male and female plant parts that allow it to self-pollinate. The pollen simply needs to move from the anther (male plant part) to the stigma (female plant part), all within the same flower. Insects, usually bees, or a strong breeze will transfer the lightweight pollen grains from anther to stigma.

Pollination can be compromised when tomatoes are growing in a location protected from the wind, such as an enclosed patio or near buildings that block air movement. Tomatoes growing indoors lack both wind and bees to help with pollination.

Other hurdles to pollination include very wet or humid conditions during flowering. Pollen clumps when wet and doesn’t move well, preventing pollination. Extreme dry conditions also present a problem because the usually sticky stigma becomes dry so pollen has trouble adhering to it.

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How to Pollinate Tomatoes by Hand to Boost Your Harvest (3)

When to Pollinate Tomatoes by Hand

The best time to hand pollinate tomatoes is shortly after the flowers open fully. Tomato flowers often remain open for a few days, providing an ample window for pollination. You can pollinate tomato flowers anytime from late morning through early evening. Avoid early morning when the flowers are wet with dew. The dew causes the pollen to clump together, making it difficult to transfer.

How to Pollinate Tomatoes

Hand pollinating tomatoes is a simple process because each tomato flower contains both male and female plant parts. With the right timing and techniques, you can help move pollen where it needs to go to produce fruit.

1. Select dry tomato flowers.

Hand pollinate tomato flowers when they are thoroughly dry. Avoid morning when flowers are damp with dew and late evening when dew descends on the garden. Wait at least two hours after a rain event before hand pollinating.

2. Move the pollen.

No special tools are needed to pollinate tomatoes—just tap on the base of the flower with your finger. The movement will dislodge the pollen and gravity will help at least some pollen grains fall on the stigma. Some people find a thin pencil helpful for tapping the base of flowers in tightly packed flower clusters. Electric toothbrushes are the tool of choice for others. Touch the tip of the vibrating toothbrush to the base of the flower for a few seconds.

3. Repeat daily for 3 days.

Hand pollination is most successful when the flowers are hand pollinated for 3 consecutive days. The repetition accounts for immature pollen grains and mediates weather challenges by offering multiple opportunities for the pollen to transfer to the stigma.

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Frequently Asked Questions

  • How can I tell if a tomato flower has been pollinated?

    You know pollination is successful when the flower petals fade, dry, and fall off and you see a tiny immature tomato forming where the flower was.

  • Besides hand pollinating, how can I increase pollination for my tomato plants?

    Tomatoes are most commonly—and most effectively—pollinated by the wind or insects. While there isn’t much you can do about the amount of wind moving through your garden, you can invite more hardworking, native bees and other insects into your tomato patch to help with pollination. Roll out the welcome mat by providing food, water, and shelter.

  • Why do I have a lot of tomato flowers but not much fruit?

    Assuming you've got plenty of pollinators and breezes doing their thing, or that you've followed best practices for hand pollinating tomato flowers, it could be too hot. When day temperatures are above 90°F and night temperatures are above 75°F, tomato pollen isn't viable. So even if it lands where it's supposed to, it won't pollinate the flower.

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How to Pollinate Tomatoes by Hand to Boost Your Harvest (2024)

FAQs

How to Pollinate Tomatoes by Hand to Boost Your Harvest? ›

Hand pollination of tomatoes is a simple process and it should be conducted on a warm sunny day for optimal results. You can simply shake the flowers by tapping behind the flower with your finger or with a pencil to stimulate the plant to release pollen.

How can I increase my tomato harvest? ›

Tips to improve your tomato harvest
  1. Water consistently. Tomatoes need consistent moisture to grow leaves and produce and ripen fruit. ...
  2. Scout for insects, disease. At least once a week, walk through your garden and look at your tomato plants. ...
  3. Pick often. ...
  4. Harvest carefully.
Sep 2, 2022

How do you improve tomato pollination? ›

Increasing your yield just takes a simple shake

The pollen will drop from the stamen of the flower onto the pistil. There's no magic number of times you should shake your tomato plants; you just sort of wing it. Gardeners usually do it two or three times a day to ensure good pollination.

How often do you hand pollinate tomatoes? ›

Pollinating Tomatoes, Peppers and Eggplants

With our tomatoes, peppers and eggplants, pollination is fairly simple and can be accomplished in a variety of methods, including: Gently shaking or vibrating the plants or individual flowers a few times a week (daily is best) after flowers appear (see video below).

How to increase flowering in tomatoes? ›

If you're wondering how to increase flowering in tomatoes, try increasing how much light they receive. Tomatoes need eight hours of daylight to flower. Sunlight gives your tomato plants the energy to produce fruit, so if your plant doesn't have enough sunlight, you're less likely to see tomatoes fruiting.

How to help tomatoes produce more fruit? ›

If you're faced with tomato plants not setting fruit, the best thing to do is to keep the plants healthy and fertilized with plant food, such as Miracle-Gro® Shake 'n Feed® Tomato, Fruit & Vegetable Plant Food. The plants will start to produce again when the weather becomes favorable.

How to improve the yield of tomatoes? ›

How to increase tomato yield
  1. Nitrogen. Nitrogen is one of the most important nutrients required for optimum crop growth and high tomato crop yields. ...
  2. Phosphorus. Phosphorus is important for early growth and root development of the establishing seedling. ...
  3. Potassium. ...
  4. Calcium. ...
  5. Sulfur. ...
  6. Micronutrients.

How do I get more tomatoes than leaves? ›

Pruning at the right time directs energy toward creating and ripening fruit instead of making more leaves. Overall, you will probably have fewer fruit on a pruned plant, but it will be bigger.

How to trim tomato plants to produce more fruit? ›

If your goal is to maximize the harvest, prune suckers sparingly. A good compromise is to remove all suckers that grow below the first flower cluster. This helps keep the main supporting stem strong, but it doesn't remove upper suckers that will eventually produce flowers and fruit.

Why are my tomato plants blooming but not producing fruit? ›

Despite being one of the most popular home crops, tomatoes have their share of sensitivities. They are extremely reactive to dips or increases in temperature, insufficient or excess irrigation, improper fertilization and pollination. All these can result in a plant that blooms but never fruits.

How can I improve my garden pollination? ›

Ensure that different types of pollinators visit your yard by planting flowers of different shapes, sizes, and colors. Planting flowers in clumps, rather than scattering single flowers throughout the yard, makes it easier for pollinators to locate their next meal.

How to pollinate tomato plants by hand? ›

No special tools are needed to pollinate tomatoes—just tap on the base of the flower with your finger. The movement will dislodge the pollen and gravity will help at least some pollen grains fall on the stigma. Some people find a thin pencil helpful for tapping the base of flowers in tightly packed flower clusters.

Is wind enough to pollinate tomatoes? ›

In the field wind movement is usually enough to cause pollination in a tomato flower, but at times there are very calm days and nights with very 'heavy' air and little wind movement.

Can you pollinate a tomato plant with itself? ›

Here's a brief horticultural lesson

Tomatoes are self-pollinating, meaning they have flowers that contain both the male and female parts, so more than one plant is not needed for reproduction. The pollen falls within the flower to pollinate itself. That doesn't mean insects and wind aren't important, though.

Why are my tomato plants blooming but no fruit? ›

Despite being one of the most popular home crops, tomatoes have their share of sensitivities. They are extremely reactive to dips or increases in temperature, insufficient or excess irrigation, improper fertilization and pollination. All these can result in a plant that blooms but never fruits.

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