Best Organic Tomato Fertilizers: Top 5 Eco-Friendly Options

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Tomato plants consume large amounts of nutrients from the soil. If you don’t supplement, the plants will run out of resources and your plants will suffer. Make sure you meet their needs by using the best organic tomato fertilizers.

Our Favorite

Espoma Tomato-tone Organic Fertilizer (3-4-6) for Tomatoes
  • FOR USE ON: Use Tomato-tone organic fertilizer for all types of tomatoes; both heirloom and hybrid. It Produces plump, abundant tomatoes, not unwanted foliage. Can also be used on all vegetables.

This organic fertilizer is a great choice for improving tomato yield and taste. It’s made from natural and organic ingredients, including bone meal, feather meal, and other natural ingredients that provide a balanced nutrient blend to support healthy plant growth.


  • Organic and Environmentally Friendly: All-natural, environmentally friendly product that doesn’t contain harmful chemicals.
  • Enhanced Tomato Flavor: The unique blend of nutrients in Tomato-tone improves the taste of your tomatoes.
  • Promotes Healthy Growth: Espoma Tomato-tone’s 3-4-6 formula encourages strong root development and healthy plant growth.
  • Long-lasting Results: The slow-release formula ensures that your plants will receive nutrients over an extended period.
  • Easy to Apply: The granular form can be easily sprinkled around the base of each plant and gently mixed into the soil.


  • Price: Slightly more expensive than some other fertilizers on the market..
  • Limited to Tomatoes: It may not be the best choice for other plants in your garden.

Why You Should Use Organic Fertilizers

Using an organic fertilizer offers several benefits for both your garden and the environment. Here are some reasons why you should consider using an organic tomato fertilizer:

  1. Environmental Safety: Organic fertilizers are made from natural ingredients, which means they are free from synthetic chemicals and harmful substances. This makes them safer for the environment, reducing the risk of contaminating water sources, soil, and ecosystems.
  2. Human and Animal Health: They do not contain harmful chemicals, making them safer for use around children, pets, and wildlife. Additionally, they reduce the risk of ingesting harmful chemicals from your produce, ensuring a healthier and safer food source.
  3. Improved Soil Health: Organic fertilizers help enhance soil structure and fertility by providing essential nutrients, increasing microbial activity, and improving water retention. Healthy soil is essential for strong plant growth and higher yields.
  4. Better Flavor and Nutrient Content: Helpful in improving the taste and nutrient content of your tomatoes. Since they are derived from natural sources, they provide a balanced mix of nutrients that promote healthy plant growth and improve the flavor and nutritional value of your produce.
  5. Sustainability: Made from renewable resources like animal manure, compost, and plant matter, making them a more sustainable choice compared to synthetic fertilizers, which are derived from non-renewable resources like fossil fuels.

Summary of the Best Organic Tomato Fertilizers

Best OverallEspoma Organic Tomato-Tone 3-4-6
GranularBurpee Organic Tomato & Vegetable
Water SolubleMiracle-Gro Performance Organics
Liquid FertilizerNeptune’s Harvest Tomato & Veg Fertilizer
Fertilizer SpikesJobe’s Organics Fertilizer Spikes

More details on these products can be found below.


Using the Best Organic Tomato Fertilizers

Be sure you’re using the best organic tomato fertilizers whether you’re growing in the ground, in pots or in grow bags.

It is every gardener’s dream to have plump, juicy tomatoes on their plants. To make this dream come true, you need to provide your plants with the ideal conditions.

Using the best organic fertilizer is crucial to ensuring the success of your garden and the quality of your harvest. High-quality fertilizers provide a balanced mix of essential nutrients that promote healthy plant growth, improve resistance to pests and diseases, and enhance fruit production.

By selecting the right organic fertilizer, you not only contribute to the preservation of the environment but also ensure the safety and well-being of your family, as the produce is free of harmful chemicals.

Furthermore, investing in organic fertilizers can significantly impact the taste, texture, and nutritional value of your tomatoes, elevating your homegrown produce to a whole new level.

In essence, using the best organic tomato fertilizers is a vital step in creating a thriving, sustainable, and healthy garden that yields bountiful and delicious harvests.

Our Picks For The Best Organic Tomato Fertilizers

Best Granular

Burpee Organic Tomato and Vegetable Granular Plant Food (3-6-4)
  • Burpee Organic All Purpose Granular Plant Food is formulated for long-lasting results

An all-purpose, all-natural fertilizer designed to enhance the growth and yield of both tomatoes and various other vegetables. there was a noticable improvement in my garden’s overall performance after using the Burpee Organic Tomato and Vegetable Granular Plant Food.


  • Organic and Eco-Friendly: Safe to use around children, pets, and wildlife. It does not contain any harsh chemicals or synthetic ingredients.
  • Versatile: Burpee Organic Tomato and Vegetable Granular Plant Food can be used on a variety of plants.
  • Feeds for up to 3 Months: Provides long-lasting nourishment to your plants without the need for constant reapplication.
  • Enhances Yield: The balanced 3-6-4 nutrient formula in this plant food promotes healthy growth and increased yield in both tomato and vegetable plants.
  • Easy Application: The granular form of Burpee’s plant food makes it easy to apply. Simply sprinkle the recommended amount around the base of your plants and mix it into the soil.


  • Price per Pound: While the overall price of this product is reasonable, the price per pound is slightly higher than some other organic fertilizers on the market.
  • Mild Odor: As with many organic fertilizers, Burpee’s plant food has a mild odor that some gardeners may find off-putting. However, the smell dissipates quickly after application.

Best Water Soluble

Miracle-Gro Performance Organics Edibles Plant Nutrition Granules (3-3-3)
  • Use Miracle-Gro Performance Organics Edibles Plant Nutrition to feed tomatoes, vegetables, herbs, and fruits

High-quality, organic plant food specifically designed for edible plants, such as fruits, vegetables, and herbs with a balanced 3-3-3 nutrient formula. When using this product, I saw a significant improvement in the health, growth, and taste of my edible plants.


  • Organic and Safe: Made from all-natural ingredients, this plant food is OMRI listed for organic use and is safe for use around children and pets.
  • Versatile: Suitable for a wide range of edible plants, including fruits, vegetables, and herbs.
  • Improves Taste and Yield: Not only enhances plant growth but also improves the taste and yield of your edible plants.
  • Easy Application: Simply sprinkle the recommended amount around the base of your plants and mix it into the soil.
  • Feeds up to 6 Weeks: One application of Miracle-Gro Performance Organics Edibles Plant Nutrition Granules lasts up to six weeks.


  • Price: While not overly expensive, the price is slightly higher than some other organic plant foods on the market.
  • Not for Ornamental Plants: It may not provide the optimal nutrients for non-edible plants in your garden.

Best Fertilizer Spikes

Jobe’s Organics Vegetable & Tomato Fertilizer Spikes (2-7-4)
  • Package contains 18 tomato fertilizer spikes and are produced to avoid wasteful runoff, mess, hazards and smells

Fertilizer spikes are a convenient solution for providing essential nutrients to your tomato and vegetable plants. These pre-measured spikes are formulated with a 2-7-4 nutrient ratio to promote healthy growth, high yield, and better flavor.


  • Organic and Safe: Jobe’s Organics Vegetable & Tomato Fertilizer Spikes are OMRI listed for organic gardening, no harsh chemicals.
  • Easy to Use: Just insert the spikes into the soil near the plant’s base, and the nutrients will be released slowly over time as the spikes break down.
  • Effective Nutrient Delivery: The 2-7-4 nutrient ratio in these fertilizer spikes promotes strong root development, healthy plant growth, and increased fruit production.
  • Continuous Feeding: Jobe’s Organics Fertilizer Spikes provide continuous nourishment to your plants for up to 8 weeks, reducing the need for frequent reapplication.
  • Affordable: An affordable solution for gardeners looking to improve their tomato and vegetable plants’ growth and yield.


  • Limited Application: These fertilizer spikes are specifically designed for tomatoes and vegetables, meaning they may not be suitable for other plants in your garden.
  • Potential for Over-Fertilizing: Because the spikes are pre-measured, it’s important to follow the package instructions carefully to avoid over-fertilizing your plants.

Best Liquid Fertilizer

Neptune’s Harvest Tomato & Veg Formula Fertilizer (2-4-2)
  • Increases Vigor And Volume Of Tomatoes And Vegetables

A unique blend of fish, seaweed, and other natural ingredients designed to boost the growth, yield, and overall health of your tomato and vegetable plants. This liquid fertilizer is packed with essential nutrients that help improve plant vigor.


  • Organic and Environmentally Friendly: Made from all-natural, sustainable ingredients and is OMRI listed for organic gardening.
  • High Nutrient Content: With a 2-4-2 nutrient formula, this liquid fertilizer provides essential nutrients, vitamins, and minerals to improve plant growth, increase crop yield, and enhance the flavor of your produce.
  • Versatile: Can be used on various plants, including tomatoes, peppers, cucumbers, and other vegetables.
  • Easy to Apply: This liquid fertilizer is easy to mix and apply with a watering can, hose-end sprayer, or irrigation system.
  • Boosts Plant Health: Helps improve plant vigor, increase resistance to pests and diseases, and promote healthier root systems.


  • Price: The price of Neptune’s Harvest Tomato & Veg Formula Fertilizer is slightly higher than some other fertilizers on the market.
  • Strong Odor: Due to the fish and seaweed ingredients, this fertilizer has a distinct odor that some gardeners may find unpleasant.

How To Choose The Best Organic Tomato Fertilizers

Choosing the best organic tomato fertilizer involves considering factors such as the nutrient composition, form, application method, and overall effectiveness. Here are some tips to help you select the best organic tomato fertilizer for your garden:

Nutrient Composition

A good organic tomato fertilizer should contain the essential macronutrients nitrogen (N), phosphorus (P), and potassium (K), as well as micronutrients such as calcium, magnesium, and trace elements.

When the tomato plants begin to flower, it’s time to start using a fertilizer that contains phosphorus and potassium in larger proportions than nitrogen. In addition, the potassium index should be equal to or higher than the phosphorus index (3-4-6).

Using an organic fertilizer that’s highest in nitrogen during the fruiting stage will result in plants with lush green foliage but lacking in flower and fruit production.

Application Method

Consider the ease of application and your gardening routine when choosing a fertilizer. Some fertilizers need to be mixed with water, while others can be applied directly to the soil. Choose a fertilizer with an application method that you find convenient and easy to use.

Organic Certification

Look for a fertilizer that is OMRI (Organic Materials Review Institute) listed or certified by another reputable organization. This ensures that the product meets strict organic standards and is free of synthetic chemicals and harmful substances.

Price and Value

Consider the cost of the organic tomato fertilizer and compare it to the expected benefits, such as improved plant growth, yield, and taste. While it’s essential to find a product that fits your budget, don’t compromise on quality and effectiveness.

Local Soil Conditions

Test your soil to determine its nutrient levels and pH. This information can help you select an organic tomato fertilizer that addresses your soil’s specific needs, ensuring optimal plant growth and yield.

User Reviews and Recommendations:

Read reviews and ask for recommendations from fellow gardeners or local gardening experts to learn about their experiences with specific organic tomato fertilizers. This can help you identify products that have proven effective for others in similar growing conditions.

Combining Fertilizers

Organic fertilizers used in combination can be a great way to get the perfect nutrient ratios. For instance, amend your soil pre-planting with a granular fertilizer, such as the Burpee Organic, which has a ration of 3-6-4. This will slowly release the nutrients for several months.

Then use a fertilizer, like Espoma organic, with a ratio of 3-4-6 when watering. Using this combination gives an overall ratio of 6-10-10. Having phosphorus and potassium higher than nitrogen is the perfect combination for flowering and producing large, plump tomatoes.

Final Thoughts

If we could only have one product from our list of the best organic tomato fertilizers, it would be the Espoma Organic. However, we found that using the Espoma in combination with the Burpee granules, gave us excellent results. If you’re looking for something more cost effective that doesn’t require any mixing, consider Jobe’s fertilizer spikes which aren’t specifically targeted at tomatoes but produce good results. The best bang for the buck is the Miracle-Gro organic which is cost effective and goes a long way while providing higher than average improvements in yield.

You used the best seed starting trays and the best seed starting mix to start your tomato seeds, don’t let all that hard work go to waste. Be sure and use a top-quality fertilizer to ensure you get the bountiful harvest that you deserve.

I hope this review has been helpful in finding the best organic tomato fertilizers. While you’re here, take a look at our collection of heirloom tomato seeds.

FAQ: Best Organic Tomato Fertilizers

How often should I fertilize tomatoes organically?

This depends on the type of fertilizer you are using. When using water-soluble nutrients, start watering once when you first plant tomatoes. Then continue feeding every two weeks. Granular and slow-acting fertilizers can be added periodically, some last up to 3 months.

What happens to tomato plants with too much fertilizer?

Tomato plants that get too much nitrogen will have lush leaves but will be lacking flowers or fruit. If you give too much fertilizer overall, you may notice “burning” of the leaves. Yellowing and browning begin at the tips of the leaves. Even the best organic tomato fertilizers can cause nutrient burns if you use them too often.

What does nitrogen deficiency in tomatoes look like?

Nitrogen is a mobile nutrient, meaning it can be redistributed within the plant. When tomato plants aren’t getting enough nitrogen, the leaves begin to turn yellow. This yellowing usually begins with the largest, oldest, and lowest leaves. It is the plant’s attempt to reclaim nitrogen in order to continue new growth.

Are coffee grounds good for tomato plants?

In a word, no. Gardening “hacks” like this one are usually invented by some TikTok’er trying to get views. The idea behind this is that coffee grounds are acidic and help acidify the soil (lower the pH) and add nutrients. Although slightly acidic soil improves nutrient uptake, there is no evidence that tomatoes benefit from adding coffee grounds to the soil. In fact, the caffeine in coffee grounds can be harmful to plant development.

Is Epsom salt a fertilizer for tomatoes?

Espom salt is magnesium sulfate. If your plants are magnesium deficient (yellow leaves with green veins), they may benefit from some Epsom salts added during watering. However, magnesium deficiency in the soil is rare. It is not recommended to use it without testing the soil to confirm the deficit. Excess magnesium can be very harmful to plants.

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