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Organic Tomato Fertilizers

10 Best Organic Tomato Fertilizers 2026 in the United States

#1

Winner

10.0 score

Miracle-Gro Shake 'n Feed Tomato, Fruit and Vegetable Plant Food, For Outdoor In-Ground and Potted Plants, Feeds up to 3 Months, 4.5 lbs.

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Miracle-Gro Shake 'n Feed Tomato, Fruit and Vegetable Plant Food, For Outdoor In-Ground and Potted Plants, Feeds up to 3 Months, 4.5 lbs.

Miracle-Gro

10.0 score

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Miracle-Gro Shake 'N Feed Tomato, Fruit and Vegetable Plant Food offers a convenient and effective option for nurturing your plants. One of its primary strengths is its long-lasting feeding capacity, as it nourishes plants for up to 3 months. This reduces the frequency of application, which is beneficial for those who prefer a low-maintenance gardening routine.

Rating
10.0
Chosen by1,238
Source of Nutrients
Form of Fertilizer

Most important from
10505 reviews

Source of Nutrients
The added natural ingredients like kelp, earthworm castings, and feather meal contribute to the overall health of plants.
Form of Fertilizer
The shake-and-feed application method is incredibly convenient and doesn't require any mixing or measuring, saving a lot of time and effort.
#2
9.4 score

Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 (Gallon)

Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 (Gallon)

Neptune's Harvest

9.4 score

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Neptune's Harvest Fish & Seaweed Fertilizer (2-3-1) is a great choice for gardeners looking to nourish their tomato plants organically. The NPK ratio (2-3-1) indicates it has a balanced mix of nitrogen, phosphorus, and potassium, essential for healthy plant growth. Being derived from fish and seaweed, it provides natural nutrients that promote vibrant flowers and foliage, as well as abundant and fragrant blooms.

Rating
9.4
Source of Nutrients
Form of Fertilizer

Most important from
7084 reviews

Source of Nutrients
The natural and sustainable formulation of fish and seaweed provides essential nutrients, promoting strong root development, vigorous foliage growth, and prolific flowering and fruiting.
Form of Fertilizer
The liquid form is easy to apply with a watering can or spray bottle, ensuring quick absorption and delivering nutrients efficiently.
#3
9.1 score

Burpee Organic Tomato & Vegetable Granular Plant Food, 4 lb

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Burpee Organic Tomato & Vegetable Granular Plant Food, 4 lb

Burpee

9.1 score

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Burpee Organic Tomato & Vegetable Granular Plant Food is designed to provide long-lasting nourishment for your garden. One of its strong points is the easy-to-apply granule form that releases essential nutrients immediately and continues to feed plants for up to three months. This extended feeding period reduces the need for frequent applications, which is convenient for busy gardeners.

Rating
9.1
Form of Fertilizer
Application Frequency

Most important from
1410 reviews

Form of Fertilizer
This is my go-to for general fertilizing. It mixes extremely well, is extra gentle on plants and is safe for my backyard wildlife.
Application Frequency
Within days of putting it down, my old plants were already starting to show extra growth and the new seedlings I started were already shooting up with much more oomph.

Top 10 Best Organic Tomato Fertilizers 2026 in the United States

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General Hydroponics

General Hydroponics Flora Blend-Vegan Compost Tea Fertilizer, 1 Qt., Model Number: GH1592

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#1

Winner

10.0  score
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Miracle-Gro

Miracle-Gro Shake 'n Feed Tomato, Fruit and Vegetable Plant Food, For Outdoor In-Ground and Potted Plants, Feeds up to 3 Months, 4.5 lbs.

Source of Nutrients: natural ingredients
Form of Fertilizer: Powder
Application Frequency: up to 3 months

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16% OFF

Chosen by 1238 this week

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General Hydroponics

General Hydroponics Flora Blend-Vegan Compost Tea Fertilizer, 1 Qt., Model Number: GH1592

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#2
9.4  score
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Neptune's Harvest

Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 (Gallon)

NPK Ratio: 2-3-1
Source of Nutrients: Fish and seaweed
Form of Fertilizer: Liquid
Application Frequency: More frequent than other fertilizers

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#3
9.1  score
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Burpee

Burpee Organic Tomato & Vegetable Granular Plant Food, 4 lb

Form of Fertilizer: Granular
Application Frequency: up to 3 months

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36% OFF
#4
7.9  score
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Neptune's Harvest

Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 36 oz

NPK Ratio: 2-4-2
Source of Nutrients: fresh fish, seaweed, molasses, plants
Form of Fertilizer: Liquid
Microbial Content: beneficial microbes and humic acids
Application Frequency: 1-2 weeks outdoors, weekly indoors

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#5
7.6  score
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Espoma

Espoma Organic Tomato-Tone 3-4-6 with 8% Calcium. Organic Fertilizer for All Types of Tomatoes and Vegetables. Promotes Flower and Fruit Production. 4 lb. Bag - Pack of 2

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#6
7.3  score
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Jobe's Organics

Jobe’s Organics Granular Garden Fertilizer, Easy Plant Care Fertilizer for Vegetable Gardens and Tomato Plants, 4 lbs Bag

NPK Ratio: 2-5-3
Source of Nutrients: Organic
Form of Fertilizer: Granules
Application Frequency: Every 4-6 weeks

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#7
7.3  score
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Neptune's Harvest

Neptune's Harvest Natural Tomato & Vegetable Organic, Plant Food 18 oz Concentrate

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#8
7.3  score
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Neptune's Harvest

Neptune's Harvest Fish Fertilizer 2-4-1, 18 Ounce

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#9
7.3  score
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True Organic

True Organic Tomato and Vegetable Food Granular Fertilizer 4 lbs - CDFA, OMRI Listed for Organic Gardening NPK 4-5-6

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#10
7.0  score
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Miracle-Gro

Miracle-Gro Water Soluble Tomato Plant Food

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33% OFF
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Buying Guide for the Best Organic Tomato Fertilizers

Choosing the right organic tomato fertilizer is crucial for ensuring your tomato plants grow healthy and produce a bountiful harvest. Organic fertilizers are derived from natural sources and are environmentally friendly, making them a great choice for sustainable gardening. When selecting an organic tomato fertilizer, it's important to consider several key specifications to ensure it meets the needs of your plants and your gardening practices.
NPK RatioThe NPK ratio stands for Nitrogen (N), Phosphorus (P), and Potassium (K) - the three primary nutrients that plants need. This ratio is important because it indicates the balance of nutrients in the fertilizer. For tomatoes, a balanced NPK ratio like 5-5-5 or one slightly higher in phosphorus, such as 3-4-6, can promote healthy growth and fruit production. If your soil is already rich in nitrogen, you might want a lower nitrogen ratio to avoid excessive foliage growth at the expense of fruit.
Source of NutrientsOrganic fertilizers can be made from various natural sources such as compost, manure, bone meal, or seaweed. The source of nutrients is important because it affects how quickly the nutrients are available to the plants and the overall health of the soil. For example, compost and manure improve soil structure and microbial activity, while bone meal provides a slow-release source of phosphorus. Choose a source that aligns with your gardening goals and soil health.
Form of FertilizerOrganic fertilizers come in different forms, including granular, liquid, and powder. The form of the fertilizer is important because it affects how you apply it and how quickly it works. Granular fertilizers are easy to apply and provide a slow, steady release of nutrients. Liquid fertilizers are fast-acting and can be used for foliar feeding. Powdered fertilizers can be mixed with water or sprinkled directly onto the soil. Consider your application preferences and the immediate needs of your plants when choosing the form.
Microbial ContentSome organic fertilizers contain beneficial microbes that help improve soil health and nutrient uptake. This is important because healthy soil microbes can enhance plant growth and resilience to diseases. Look for fertilizers that include mycorrhizae or other beneficial bacteria if you want to boost soil health and plant vitality. If your soil is already healthy, this might be less of a priority.
Application FrequencyDifferent fertilizers have different recommended application frequencies, ranging from every few weeks to once per season. This is important because it affects how much time and effort you need to invest in fertilizing your tomatoes. If you prefer low-maintenance gardening, look for a fertilizer with a longer application interval. If you enjoy regular gardening tasks, a more frequent application schedule might be suitable.

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