We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy
Home
All Categories
Patio, Lawn & Garden
Gardening & Lawn Care
Organic Garden Fertilizers

10 Best Organic Garden Fertilizers 2025 in the United States

#1

Winner

9.7 score

Miracle-Gro Shake 'N Feed All Purpose Plant Food, For In-Ground and Container Plants, Feeds for up to 3 Months, 4.5 lbs.

25%OFF

Miracle-Gro Shake 'N Feed All Purpose Plant Food, For In-Ground and Container Plants, Feeds for up to 3 Months, 4.5 lbs.

Miracle-Gro

9.7 score

Check price

The Miracle-Gro Shake 'N Feed All Purpose Plant Food is a versatile product suitable for a variety of plants, both in-ground and container-based. Its strength lies in its ability to feed plants for up to 3 months, which reduces the frequency of reapplication and ensures consistent nourishment. The inclusion of vital micronutrients helps in producing stronger and more vibrant plants, which is a major plus for any gardener aiming for a healthy garden.

Rating
9.7
Chosen by1,488
Soil Condition
Application Method

Most important from
15502 reviews

Soil Condition
This fertilizer works wonders, especially in challenging conditions like a balcony garden.
Application Method
Easy to apply and ensures healthy plant growth, making it a great value for the price.
#2
9.4 score

FoxFarm Fertilizer Soil Trio Liquid Nutrient: Tiger Bloom, Grow Big, Big Bloom Bottles - (Pack of 3-1 Pint)

5%OFF

FoxFarm Fertilizer Soil Trio Liquid Nutrient: Tiger Bloom, Grow Big, Big Bloom Bottles - (Pack of 3-1 Pint)

FoxFarm

9.4 score

Check price

The FoxFarm Fertilizer Soil Trio, which includes Tiger Bloom, Grow Big, and Big Bloom, is designed to support robust plant growth and development. The trio provides a well-rounded nutrient profile suitable for various plants, with each product serving specific growth phases. Grow Big focuses on vegetative growth, Tiger Bloom aids in flowering and fruiting with its higher phosphorus content, and Big Bloom can be used consistently for plant health.

Rating
9.4
Source of Nutrients
Release Rate
Application Method

Most important from
23314 reviews

Source of Nutrients
These nutrients were purchased for indoor plants to grow during extreme weather. They are very lush and thriving thanks to these plant vitamins and minerals.
Release Rate
Very little goes a long way and I only have to feed them about twice a week. This supply will last more than a whole season.
Application Method
Easy to mix and works great for me on my plants.
#3
9.2 score

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

23%OFF

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

Miracle-Gro

9.2 score

Check price

Miracle-Gro Shake 'N Feed Tomato, Fruit & Vegetable Plant Food is designed to feed your plants for up to three months, which is convenient for gardeners who prefer less frequent applications. It contains calcium, an important nutrient that helps plants develop stronger cell walls, leading to better quality and longer-lasting fruits and vegetables. This fertilizer is suitable for a variety of plants including tomatoes, fruits, and vegetables, both in-ground and in container gardens, making it versatile for different growing setups.

Top 10 Best Organic Garden Fertilizers 2025 in the United States

Sponsored

Slide 1

Gardenera

Premium 4-12-0 Organic Bone Meal Fertilizer by Gardenera - 20 Quart - All-Natural Plant Food Source of Nitrogen and Phosphorus for Bulbs, Gardens, Potted Plants, Trees, and Shrubs

Check price

#1

Winner

9.7 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Miracle-Gro

Miracle-Gro Shake 'N Feed All Purpose Plant Food, For In-Ground and Container Plants, Feeds for up to 3 Months, 4.5 lbs.

Source of Nutrients: natural ingredients
Release Rate: up to 3 months
Plant Type: flowers, vegetables, herbs
Application Method: granule form

Check price

25% OFF

Chosen by 1488 this week

Sponsored

Slide 1

Gardenera

Premium 4-12-0 Organic Bone Meal Fertilizer by Gardenera - 20 Quart - All-Natural Plant Food Source of Nitrogen and Phosphorus for Bulbs, Gardens, Potted Plants, Trees, and Shrubs

Check price

#2

9.4 score

Slide 1Slide 2Slide 3Slide 4Slide 5

FoxFarm

FoxFarm Fertilizer Soil Trio Liquid Nutrient: Tiger Bloom, Grow Big, Big Bloom Bottles - (Pack of 3-1 Pint)

Source of Nutrients: OMRI listed, CDFA certified
Soil Condition: Organic
Plant Type: Various plants
Application Method: Mix with water, apply

Check price

5% OFF
#3

9.2 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Miracle-Gro

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

Source of Nutrients: calcium
Release Rate: slow release over 3 months
Soil Condition: typical garden soils
Plant Type: tomatoes, fruits, vegetables
Application Method: apply on soil, mix lightly

Check price

23% OFF
#4

8.9 score

Slide 1Slide 2Slide 3Slide 4Slide 5

FoxFarm

FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0.01-0.03-0.7 (Pint)

N-P-K Ratio: 0.01-0.03-0.7
Source of Nutrients: earthworm castings, bat guano
Release Rate: slow
Plant Type: variety of plants
Application Method: mix with water

Check price

#5

8.6 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Dr. Earth

Dr. Earth Organic 5 Tomato, Vegetable & Herb Fertilizer Poly Bag

Check price

45% OFF

Related Products

#6

8.3 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Espoma

Espoma Organic Garden-Tone 3-4-4 Organic Fertilizer for Cool & Warm Season Vegetables and Herbs. Grow an Abundant Harvest of Nutritious and Flavorful Vegetables – 4 lb. Bag

Check price

#7

8.0 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Jobe's Organics

Jobe’s Garden Fertilizer Spikes, Organic Fertilizer for Azaleas, Camellias, Rhododendrons, and Other Acid Loving Plants, 10 Count

Check price

#8

7.7 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Espoma

Espoma Organic Plant-Tone 5-3-3 Natural & Organic All Purpose Plant Food; 4 lb. Bag; The Original Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. - Pack of 2

Check price

12% OFF
#9

7.4 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Miracle-Gro

Miracle-Gro Performance Organics All Purpose Plant Nutrition Granules - 2.5 lb., All-Purpose Plant Food for Vegetables, Flowers and Herbs, Feeds up to 240 sq. ft.

Check price

#10

7.1 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Miracle-Gro

Miracle-Gro Performance Organics Edibles Plant Nutrition - Organic Plant Food Feeds Instantly, for Tomatoes, Vegetables, Herbs and Fruits, Promotes a Bountiful Harvest, 1 lb.

Check price

19% OFF
How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Buying Guide for the Best Organic Garden Fertilizers

Choosing the right organic garden fertilizer is crucial for the health and productivity of your plants. Organic fertilizers are derived from natural sources and help improve soil structure, provide essential nutrients, and promote beneficial microbial activity. When selecting an organic fertilizer, it's important to consider the specific needs of your plants, the condition of your soil, and the type of garden you have. Understanding the key specifications of organic fertilizers will help you make an informed decision and ensure your garden thrives.
N-P-K RatioThe N-P-K ratio represents the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. Nitrogen promotes leafy growth, phosphorus supports root development and flowering, and potassium enhances overall plant health. For leafy vegetables, a higher nitrogen content (e.g., 10-5-5) is beneficial. For flowering plants and root crops, a balanced or higher phosphorus and potassium ratio (e.g., 5-10-10) is ideal. Choose a fertilizer with an N-P-K ratio that matches the specific needs of your plants.
Source of NutrientsOrganic fertilizers can be derived from various natural sources such as compost, manure, bone meal, blood meal, and seaweed. Each source has different nutrient profiles and benefits. For example, compost is a well-rounded option that improves soil structure, while bone meal is high in phosphorus, making it great for root development. Consider the nutrient needs of your plants and the benefits of each source when selecting a fertilizer.
Release RateThe release rate of a fertilizer indicates how quickly the nutrients become available to plants. Slow-release fertilizers provide a steady supply of nutrients over time, which is ideal for long-term plant health and reducing the risk of nutrient burn. Fast-release fertilizers offer immediate nutrient availability, which can be beneficial for quick growth spurts or correcting nutrient deficiencies. Choose a release rate that aligns with your gardening goals and the specific needs of your plants.
Soil ConditionThe condition of your soil plays a significant role in determining the type of fertilizer you need. Conduct a soil test to identify any nutrient deficiencies or imbalances. For sandy soils, which drain quickly, a fertilizer with higher organic matter content can help retain moisture and nutrients. For clay soils, which retain water, a fertilizer that improves aeration and drainage is beneficial. Tailor your fertilizer choice to address the specific needs of your soil.
Plant TypeDifferent plants have varying nutrient requirements. Vegetables, flowers, shrubs, and trees all have unique needs. For example, fruiting plants like tomatoes and peppers benefit from higher phosphorus levels, while leafy greens like lettuce and spinach thrive with more nitrogen. Research the specific nutrient needs of the plants in your garden and choose a fertilizer that caters to those requirements.
Application MethodOrganic fertilizers come in various forms, including granular, liquid, and powder. Granular fertilizers are easy to apply and provide a slow, steady release of nutrients. Liquid fertilizers offer quick nutrient absorption and are ideal for foliar feeding or addressing immediate deficiencies. Powdered fertilizers can be mixed with water for a customizable application. Consider the ease of use and the specific needs of your garden when selecting an application method.

FAQ