Saving Tomato Seeds

In the world of gardening, there is a certain joy that comes from growing your own food. And what better way to start than with tomatoes? These vibrant and versatile fruits are a staple in many kitchens, offering bold flavors and a myriad of culinary possibilities. But have you ever considered saving tomato seeds and growing your own organic tomatoes from scratch? It’s a rewarding and sustainable practice that allows you to take control of your food production while preserving heirloom varieties.

Importance of saving tomato seeds

Saving tomato seeds is not just a hobby; it’s an essential step towards preserving our agricultural heritage. Heirloom tomato varieties, passed down through generations, are a testament to the rich diversity of flavors and characteristics that can be found in these humble fruits. By saving and replanting these seeds, we ensure that these unique and sometimes rare varieties continue to thrive. It’s a way to safeguard our food heritage and protect against the loss of genetic diversity.

Overview of growing organic tomatoes from seed

Growing organic tomatoes from seed is a journey that starts with a small seed and ends with a bountiful harvest. It’s a process that allows you to have full control over the quality of your produce, ensuring that no harmful chemicals or pesticides are used. Starting from seed also gives you the opportunity to choose from a wide variety of tomatoes, from juicy beefsteaks to sweet cherry tomatoes.

But where do you begin? In this article, we will guide you through the process of saving tomato seeds and provide you with all the necessary steps to successfully grow organic tomatoes from seed. From choosing the right tomatoes for seed saving to planting and caring for your seedlings, we’ll cover it all. So, grab your gardening gloves and get ready to embark on a journey of flavor, sustainability, and self-sufficiency. Let’s dive in!

Why Save Tomato Seeds

Preserving Heirloom Varieties

Preserving heirloom varieties is one of the key reasons why many gardeners choose to save tomato seeds. Heirloom tomatoes are cherished for their rich history and unique characteristics. These varieties have been passed down through generations, carefully cultivated for their exceptional flavor, vibrant colors, and diverse shapes. By saving the seeds from heirloom tomatoes, gardeners can ensure that these treasured varieties continue to thrive and are not lost to time. It’s a way of honoring the legacy of these tomatoes and preserving the genetic diversity of our food system.

To learn more about heirloom tomato seeds, you can visit our heirloom tomato seeds page.


Saving tomato seeds is also a cost-effective approach to growing tomatoes. When you save seeds from your own harvest, you eliminate the need to purchase new seeds each year. This can significantly reduce your gardening expenses, especially if you’re growing tomatoes on a larger scale. Instead of relying on seed catalogs or garden centers for your tomato seeds, you can simply collect and store seeds from the best fruits of your own plants. This not only saves you money but also gives you the opportunity to select and propagate the most successful and desirable plants from your garden.


For many gardeners, the act of saving tomato seeds goes beyond cost savings and becomes an expression of self-sufficiency. By mastering the art of saving seeds, you gain control over your own food production. You become less reliant on external sources for your tomato plants and can cultivate a sense of independence. Saving tomato seeds allows you to develop a deeper connection with your garden and the natural world, as you become intimately involved in the life cycle of your plants. It’s a satisfying and empowering experience to watch your tomatoes grow from seed to fruit, knowing that you have played an integral role in their journey.

If you’re interested in learning more about how to save tomato seeds, you can visit our how to save tomato seeds page.

By preserving heirloom varieties, enjoying cost savings, and embracing self-sufficiency, saving tomato seeds offers a multitude of benefits for both the garden and the gardener. So why not embark on this rewarding journey and start saving your own tomato seeds today?

Choosing the Right Tomatoes for Seed Saving

When it comes to saving tomato seeds, choosing the right tomatoes is a crucial step for successful seed saving. In this section, we will explore the importance of selecting the right tomatoes and delve into the distinction between open-pollinated and hybrid tomatoes.

Open-pollinated vs. Hybrid Tomatoes

Open-pollinated tomatoes are varieties that have been naturally pollinated by insects, wind, or other natural means. These tomatoes have been carefully selected and stabilized over time, ensuring that their offspring will exhibit the same traits as the parent plant. Open-pollinated varieties are known for their genetic diversity and adaptability, making them ideal candidates for seed saving.

On the other hand, hybrid tomatoes are the result of cross-pollination between two different tomato varieties. Hybrids are intentionally bred to combine specific traits from each parent plant, such as disease resistance or improved flavor. However, when you save seeds from hybrid tomatoes, the resulting plants may not resemble the parent plant. This is because the traits of the hybrid tomatoes are not stable and can vary significantly in the next generation.

To preserve the unique characteristics and diversity of tomato varieties, it is recommended to focus on saving seeds from open-pollinated tomatoes, also known as heirloom varieties. These heirloom tomato seeds can be sourced from reputable seed banks or obtained by saving seeds from your own heirloom tomato plants. By doing so, you contribute to the preservation of these treasured tomato varieties for future generations.

Selecting Healthy and Ripe Tomatoes

When choosing tomatoes for seed saving, it is crucial to select healthy and ripe tomatoes. Healthy tomatoes are less likely to carry diseases or genetic abnormalities that could affect the quality of the seeds. Look for tomatoes that are free from blemishes, cracks, or signs of rot. Additionally, choose tomatoes that have reached full ripeness on the vine. Ripe tomatoes contain mature seeds that are more likely to germinate successfully.

To ensure the best results, it is recommended to select tomatoes from plants that exhibit desirable traits, such as flavor, size, or color. By saving seeds from the best-performing plants, you can gradually improve the characteristics of your tomatoes over time.

Remember, the quality of the tomatoes you choose for seed saving will directly impact the quality of the seeds and the subsequent generations of plants. So take your time, carefully select the best tomatoes, and get ready to embark on a rewarding journey of tomato seed saving.

For more information on saving tomato seeds, check out our guide on how to save tomato seeds.

Steps to Saving Tomato Seeds

Saving tomato seeds is a rewarding experience that allows you to preserve the unique characteristics of your favorite tomato varieties. By saving seeds, you can ensure a continuous supply of heirloom tomato seeds, reduce costs, and achieve a sense of self-sufficiency in your gardening endeavors. In this section, we will explore the essential steps involved in saving tomato seeds and how to do it effectively.

Fermentation Process

One of the key steps in saving tomato seeds is the fermentation process. This process helps to remove the gelatinous coating surrounding the seeds, which can inhibit germination. To begin, select a ripe and healthy tomato from your chosen variety. Slice the tomato in half and scoop out the seeds and surrounding gel into a glass jar or container.

Next, add some water to the container, enough to cover the seeds and gel. Gently stir the mixture to break up the gel and separate the seeds. Allow the mixture to sit at room temperature for approximately three to five days, stirring it once a day. During this time, natural fermentation will occur, breaking down the gel coating and helping to prevent disease transmission from the parent plant to the seeds.

After the fermentation period, the mixture will develop a layer of mold on the surface. This is an indication that the process is complete. Pour the mixture through a fine-mesh sieve to separate the seeds from the liquid and rinse them thoroughly with clean water. Spread the seeds out on a paper towel or a screen to dry for about a week, stirring them occasionally to ensure even drying.

Drying and Storing Seeds

Once the seeds have dried completely, it is crucial to store them properly to maintain their viability. Labeling and organizing the seeds is essential for future reference and to avoid any confusion. Use small envelopes, glass jars, or airtight containers to store the seeds, ensuring they are completely dry before sealing them. Remember to write the variety name and the date of collection on each container for easy identification.

To maintain seed viability, it is important to store them in a cool, dry, and dark location. A temperature of around 40 to 50 degrees Fahrenheit (4 to 10 degrees Celsius) is ideal. Avoid storing seeds in areas with high humidity, as moisture can lead to mold growth and reduced viability. By following these steps, you can extend the shelf life of your saved tomato seeds, allowing you to use them for several years.

Labeling and Organizing

Properly labeling and organizing your saved tomato seeds is essential for easy identification and future use. As mentioned earlier, it is important to label the containers with the variety name and the date of collection. Additionally, you can include any specific notes or observations about the plant or growing conditions that may be helpful in the future.

Organizing your saved tomato seeds can be done in various ways, depending on your preference. You can arrange them alphabetically, by color, or by maturity date. Some gardeners even create a seed inventory spreadsheet to keep track of their collection. Find a method that works best for you and ensures that you can easily locate and access the seeds when needed.

In conclusion, saving tomato seeds through the fermentation process, proper drying and storage, and effective labeling and organizing is a crucial step in preserving the characteristics of your favorite tomato varieties. By following these steps, you can ensure the longevity and viability of your saved seeds, allowing you to enjoy a continuous supply of delicious and unique tomatoes for years to come.

Tips for Successful Tomato Seed Saving

To ensure successful tomato seed saving, there are several important tips to keep in mind. These tips will help you avoid cross-pollination, properly store your seeds, and test their viability. By following these guidelines, you can increase your chances of growing robust and healthy tomato plants from your saved seeds.

Avoiding Cross-pollination

Cross-pollination occurs when pollen from one tomato plant fertilizes the flowers of another tomato plant. This can result in the mixing of different tomato varieties, which may produce unpredictable and undesirable traits in the offspring. To avoid cross-pollination, it is essential to separate different tomato varieties by a certain distance.

If you are growing multiple tomato varieties in your garden, it is recommended to isolate them by at least 20 feet or use physical barriers such as mesh bags to prevent bees and other pollinators from transferring pollen between plants. This will help maintain the purity of each tomato variety and ensure that the seeds you save are true to their parent plants.

Proper Seed Storage

Proper seed storage is crucial for preserving the viability and longevity of your saved tomato seeds. After extracting the seeds from the tomato fruits, it is important to thoroughly dry them before storing. This can be done by spreading the seeds on a paper towel or a clean, dry surface and allowing them to air dry for several days. Make sure to keep the seeds away from direct sunlight and excessive moisture, as these conditions can reduce their longevity.

Once the seeds are dry, it is recommended to store them in an airtight container such as a glass jar or a plastic bag. Adding a desiccant, such as silica gel or a packet of rice, can help absorb any remaining moisture and further protect the seeds from degradation. Remember to label the container with the variety name and the date of seed saving for easy organization and identification in the future.

Testing Seed Viability

Before planting your saved tomato seeds, it is advisable to test their viability. This will help you determine if the seeds are still capable of germinating and producing healthy seedlings. To test the viability of your tomato seeds, you can conduct a simple germination test.

To perform a germination test, place a few seeds on a moist paper towel or a germination tray and keep them in a warm location. After a week or so, check the seeds to see how many have sprouted. A high germination rate indicates that the seeds are still viable and can be successfully planted. If the germination rate is low, you may consider obtaining fresh seeds or saving seeds from a different tomato plant.

By following these tips for successful tomato seed saving, you can ensure the preservation of your favorite tomato varieties and enjoy the satisfaction of growing your own tomatoes from seed. Remember to avoid cross-pollination, properly store your seeds, and test their viability before planting. With these practices in place, you’ll be well on your way to a bountiful tomato harvest.

Read more about how to save tomato seeds and growing tomatoes from seed.

Planting Saved Tomato Seeds

Once you have successfully saved tomato seeds through the fermentation and drying process, it’s time to plant them and watch your own organic tomato plants flourish. In this section, we will guide you through the steps of preparing the seed starting mix, transplanting the seedlings, and caring for the tomato plants.

Preparing Seed Starting Mix

Before you can sow your saved tomato seeds, it’s essential to prepare a nutrient-rich seed starting mix. This mix provides the ideal conditions for the seeds to germinate and develop into healthy seedlings.

To create the seed starting mix, you can combine equal parts of peat moss, vermiculite, and compost. This mixture ensures good drainage, aeration, and nutrient availability for the emerging seedlings. Alternatively, you can purchase a pre-made seed starting mix from your local garden center or nursery.

Fill small pots or seed trays with the seed starting mix, leaving about half an inch of space at the top. Gently press down the mix to create a firm but not compacted surface for planting the seeds.

Transplanting Seedlings

Once the tomato seedlings have emerged and developed their first true leaves, it’s time to transplant them into larger containers or directly into your garden. Transplanting allows the young plants to establish stronger root systems and provides them with more space to grow.

Carefully remove the seedlings from their original containers, being mindful not to damage the delicate roots. Dig a hole in the soil of the new container or garden bed that is large enough to accommodate the roots without bending or crowding them.

Place the seedling in the hole and gently backfill with soil, ensuring that the seedling is at the same depth as it was in the original container. Firmly but gently press the soil around the base of the seedling to secure it in place.

If transplanting into the garden, make sure to space the seedlings according to the recommended spacing for the specific tomato variety. This allows for proper air circulation and prevents overcrowding, which can lead to disease and poor fruit development.

Caring for Tomato Plants

To ensure the success of your tomato plants, it’s important to provide them with proper care and attention throughout their growth cycle. Here are some key aspects to consider:

Watering: Tomatoes require consistent moisture to thrive. Water the plants deeply, providing enough moisture to penetrate the root zone. Avoid overwatering, as it can lead to root rot and other fungal diseases.

Fertilizing: Feed your tomato plants with a balanced organic fertilizer to provide them with essential nutrients. Follow the instructions on the fertilizer package for application rates and frequency. Additionally, consider using compost tea or worm castings as natural alternatives to chemical fertilizers.

Staking and Pruning: Most tomato varieties benefit from staking or caging to support the plants as they grow taller. Stake the plants when they are still young to avoid damaging the roots later on. Pruning can also help improve air circulation and reduce the risk of diseases. Remove the suckers that develop between the main stem and the branches.

Protecting from Pests and Diseases: Monitor your tomato plants regularly for signs of pests or diseases. Common tomato pests include aphids, tomato hornworms, and whiteflies. Consider using natural pest control methods such as beneficial insects or organic insecticidal soaps. Should you encounter any diseases, promptly remove affected leaves or fruits to prevent further spread.

Proper Sunlight Exposure: Tomatoes thrive in full sun, requiring at least six to eight hours of direct sunlight per day. Ensure that your plants are located in a spot with ample sunlight to promote healthy growth and fruit development.

By following these care guidelines, you will be well on your way to enjoying a bountiful harvest of delicious homegrown tomatoes.

Continue reading about saving tomato seeds and growing tomatoes from seed to further enhance your gardening skills.

Troubleshooting Common Issues

Poor Germination

One of the most frustrating problems that tomato seed savers may encounter is poor germination. After carefully saving and storing the seeds, it can be disheartening to find that only a few or none of them sprout. However, there are several factors that can contribute to poor germination and understanding them can help you improve your success rate.

Firstly, make sure you are using high-quality seeds. Saving seeds from diseased or unhealthy tomatoes can result in poor germination. It is essential to select the healthiest and most robust specimens for seed saving. Additionally, ensure that the seeds are fully mature and have been properly dried and stored.

Secondly, temperature and moisture play crucial roles in germination. Tomatoes require warm soil to sprout, with an ideal temperature range of 70-85°F (21-29°C). If the soil is too cold or too wet, it can inhibit germination. Ensure that you are planting the seeds at the right time and in the appropriate conditions for optimal germination.

Thirdly, some tomato varieties naturally have lower germination rates. This can be due to genetic factors or the presence of natural inhibitors in the seed coat. If you are experiencing poor germination with a specific variety, it may be worth trying a different one or adjusting your seed saving techniques.

Diseases and Pests

Tomatoes are susceptible to a variety of diseases and pests that can hinder their growth and productivity. Common tomato diseases include blight, wilt, leaf spot, and mosaic virus, among others. These diseases can be transmitted through infected seeds, soil, or airborne spores.

To prevent disease, it is crucial to start with healthy seeds. If you are saving your own tomato seeds, ensure that the parent plants are disease-free. Additionally, practice good garden hygiene by removing and disposing of any infected plants or plant debris. Crop rotation and maintaining proper spacing between plants can also help reduce the spread of diseases.

Pests such as aphids, tomato hornworms, and whiteflies can also cause damage to tomato plants. Regularly inspect your plants for signs of infestation and take appropriate measures to control them. This may include using organic insecticides, introducing beneficial insects, or implementing physical barriers.

Nutrient Deficiencies

Tomatoes require a balanced supply of nutrients to grow and thrive. Nutrient deficiencies can manifest as yellowing leaves, stunted growth, or poor fruit development. The most common nutrient deficiencies in tomatoes are nitrogen, phosphorus, and potassium.

To address nutrient deficiencies, it is important to provide your tomato plants with a well-balanced fertilizer. Organic options such as compost, manure, or fish emulsion can provide the necessary nutrients while improving soil fertility. Conduct a soil test to determine any specific deficiencies and adjust your fertilizer application accordingly.

Over-fertilization can also cause problems, so it is essential to follow the recommended application rates. Excessive nitrogen, for example, can lead to lush foliage but fewer fruits.

In conclusion, troubleshooting common issues in tomato seed saving involves addressing poor germination, diseases, and nutrient deficiencies. By understanding the causes and implementing appropriate solutions, you can increase your chances of success and enjoy a bountiful harvest of healthy and vibrant tomatoes.

To learn more about tomato seed saving, visit our article on how to save tomato seeds.


In conclusion, saving tomato seeds is a rewarding endeavor that allows you to preserve heirloom varieties, save money, and become more self-sufficient. By following the steps outlined in this beginner’s guide, you can successfully save tomato seeds and enjoy the benefits of growing organic tomatoes from seed.

One of the key advantages of saving tomato seeds is the preservation of heirloom varieties. Heirloom tomato seeds are seeds that have been passed down through generations, maintaining their unique characteristics and flavors. By saving these seeds, you contribute to the preservation of these diverse and often rare tomato varieties.

Saving tomato seeds is also a cost-effective approach to gardening. Instead of purchasing new seeds or seedlings each year, you can simply save seeds from your own tomatoes. This not only saves money but also ensures that you have a continuous supply of seeds for future plantings.

Furthermore, saving tomato seeds promotes self-sufficiency. By learning how to save tomato seeds, you gain the ability to sustain your own seed supply and reduce your reliance on external sources. This empowers you to take control of your gardening journey and create a more sustainable and independent lifestyle.

When choosing tomatoes for seed saving, it is important to understand the difference between open-pollinated and hybrid varieties. Open-pollinated tomatoes are pollinated by natural means, such as wind or insects, and produce offspring that closely resemble the parent plant. Hybrid tomatoes, on the other hand, are the result of cross-pollination between two different tomato varieties and may not produce true-to-type offspring. Therefore, it is recommended to focus on saving seeds from open-pollinated tomatoes.

To ensure successful seed saving, it is crucial to select healthy and ripe tomatoes. Selecting healthy and ripe tomatoes ensures that the seeds inside are mature and viable. Look for tomatoes that are free from diseases, blemishes, and signs of decay. Additionally, choose fully ripened tomatoes as they have the highest seed quality.

The process of saving tomato seeds involves fermentation, drying, and proper storage. Fermentation helps remove the gelatinous coating around the seeds, which can inhibit germination. After fermentation, the seeds should be thoroughly dried before storing them in a cool and dry location. Proper labeling and organizing of the seeds is also important to keep track of different tomato varieties.

When it comes to planting saved tomato seeds, it is necessary to prepare a suitable seed starting mix and provide the right conditions for germination. Transplanting seedlings into larger containers or the garden bed should be done carefully to avoid damaging the delicate roots. Caring for tomato plants includes regular watering, sufficient sunlight, and proper fertilization to promote healthy growth and maximize harvest.

While saving tomato seeds can be a rewarding experience, it is important to be aware of common issues that may arise. Poor germination rates can occur due to various factors, including improper seed storage or low seed viability. Diseases and pests can also impact the health of tomato seedlings, requiring proactive management strategies. Nutrient deficiencies may manifest as yellow leaves or stunted growth and can be addressed through proper fertilization.

In conclusion, saving tomato seeds is a valuable skill that allows you to maintain heirloom varieties, save money, and cultivate self-sufficiency. By following the steps outlined in this guide and implementing the tips provided, you can embark on a successful journey of growing organic tomatoes from seed. So go ahead, collect those tomato seeds, and enjoy the satisfaction of nurturing your own thriving tomato plants. Happy gardening!

For more information on growing tomatoes from seed, check out our guide on how to grow tomatoes from seed.

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