Check out our product review of the best organic fertilizers. We tried 10 models and can tell you the absolute best varieties.
In Hurry? Checkout Our Top Pick Of Best Organic Fertilizers.
Our Top Pick
9.7/10 our score
Best Organic Fertilizers
| Rank | Product Name | Score |
|---|---|---|
|
1  |
Humboldts Secret |
9. 7 |
|
2  |
Unco Industries Wiggle Worm |
9. 5 |
|
3 |
Neptune's Harvest |
9. 1 |
|
4 |
EarthPods Easy |
8. 8 |
|
5 |
Fox Farm Big Bloom |
8. 6 |
|
6 |
Dr. Earth Home Grown 704P |
8. 2 |
|
7 |
Espoma Tomato-Tone |
8. 0 |
|
8 |
Organic Plant Magic |
7 .7 |
|
9 |
ChickenFuel Compost |
7. 4 |
|
10 |
Down To Earth All-Purpose |
7. 2 |
1. Humboldts Secret
9.7/10 our score
- Make sure this fits by entering your model number.
- FOR ANY PLANT: Our Golden Tree formula helps activate enzymes that promote photosynthesis in any plant, tree, flower, or bush. Increase your yield quality and quantity with this all-purpose soil food additive. Whether you have sick crops, wilting flowers, or dying trees, this is the fertilizer that you need!
- GROW METHOD COMPATIBLE: No matter what grow method you’re using, Humboldts Secret Golden Tree solution will help rescue dying plants, feed growing plants, and revitalize struggling plants. It’s designed to be compatible in all mediums — hydroponics, aeroponics, coco, DWC, soil, and every other type of growing method.
- ESSENTIAL NUTRIENTS: Golden Tree can help provide essential nutrients to your garden that it isn’t getting now. Our formula contains a mixture of amino acids, kelp, carbs, and minerals. It can be used in conjunction with other additives and fertilizers or as the only additive.
- MAXIMIZE RESULTS: When used 1 – 3 times per week as suggested, Golden Tree can help increase root development, optimize photosynthesis, and increase yields and flowering sites. This is the all-in-one solution you need for herbs, vegetables, house plants, or garden flowers.
- SMALL & STRONG: Our 2-ounce solution makes up to 55 gallons of an easy-to-use additive solution to feed your plants. With Golden Tree, you can decrease vegetation time by up to 50% and increase yields by up to 20%. This is a professional-quality fertilizer that can transform any home garden and give anyone a green thumb!
2. Unco Industries Wiggle Worm
9.5/10 our score
- Make sure this fits by entering your model number.
- Organic fertilizer - pure earthworm castings
- Excellent for houseplants, vegetables, flowers and more
- Non-toxic and odor free
- Just a handful will make your plants happy
3. Neptune's Harvest
9.1/10 our score
- Make sure this fits by entering your model number.
- Gives you the best of both products with a perfect blend of fish hydrolysate and seaweed, ensuring a complete fertilization program
- Flowers and foliage will be stronger and more colorful
- Blooms will be more plentiful, fragrant and longer lasting
4. EarthPods Easy
8.8/10 our score
- Make sure this fits by entering your model number.
- CONCENTRATED BIOLOGICAL ALL PURPOSE ORGANIC PLANT FOOD — Stimulates robust root growth, strong stem development, enhances leaf color vibrancy, builds resistance to disease / pests / drought & creates rich loamy soil over time for all your indoor & outdoor plants
- NO MESSY LIQUIDS / NO CONFUSING MEASURING SPOONS / NO STINKY SMELL — 1 tube = 100 EarthPods pre-measured plant fertilizer capsules (a 5-year supply for a single special houseplant or use on big collection of indoor house plants)
- SO FAST & EASY TO APPLY — Push 1 EarthPod all the way into the root zone near the center of your plant, then just water! (EarthPods will break down & slowly release nutrients direct to roots where it counts)
- PROPRIETARY FORMULA FOR SUPERIOR RESULTS — Slow release fertilizer robust with a large variety of organic plant nutrients, trace minerals, natural growth hormones, humic & fulvic acid + a diverse population of beneficial soil root bacteria & fungi, all in a form immediately available for plant uptake
- ECO FRIENDLY & COMPACT — Tube stores easily on your kitchen shelf + recycle the empty paperboard packaging printed with soy inks when done (EarthPods are pet, child, eco-friendly + 100% sustainably made in the USA)
5. Fox Farm Big Bloom
8.6/10 our score
- Make sure this fits by entering your model number.
- Special, micro-brewed formula incorporates earthworm castings, bat guano and other high test organic ingredients
- Big Bloom will intensify flower fragrance, and it will increase essential oil production
- Big Bloom is ideal for all flowering and fruiting plants
6. Dr. Earth Home Grown 704P
8.2/10 our score
- Make sure this fits by entering your model number.
- For more nutritious and tasty vegetables
- Optimum levels of primary plant nutrients
- Contains no GMOs, chicken manure or sewage sludge
- Feeds for several months
- Made with 100% organic and natural ingredients
- Contains pro-biotic, seven champion strains of beneficial soil microbes plus ecto and endo mycorrhizae
- More abundant crops, More nutritious and tasty vegetables
- 100 percent natural and organic, Exceptional results because nutrients are released quickly, Feeds for several months, Consistent premium quality
- Eight select strains of ecto and Endo Mycorrhizae contribute to drought tolerance, enhanced nutrient availability and increased plant performance
- 100-Percent organic formula provides optimum levels of essential plant nutrients, eliminates the need for chemical fertilizers when used as directed
7. Espoma Tomato-Tone
8/10 our score
- Make sure this fits by entering your model number.
- An all natural and organic plant food enhanced with thousands of living microbes and is approved for organic gardening
- It is perfect for all tomatoes, helps prevent blossom end rot and provides a safe, continuous, and complete balanced feeding
- It is specifically formulated to produce consistently plump, juicy tomatoes
- A complete plant food with all 15 essential nutrients
- University tested formula produces consistently plump, juicy tomatoes
- Complex blend of natural organics provide complete and balanced feeding of all 15 nutrients
- Environmentally safe
- No sludges, hazardous or toxic ingredients
8. Organic Plant Magic
7.7/10 our score
- Make sure this fits by entering your model number.
- “MAKES MY LIFE SOOOO MUCH EASIER!” - Mix with water, it dissolves instantly. Use immediately to water your plants. It doesn’t matter if you have sand, loam or clay soil, your plants will be the healthiest, most beautiful and flavorful as they can be. Because our Beneficial Microorganisms Ⓡ go to work immediately to condition your soil and feed your plants.
- DEPENDABLE AND SAFE - We’re a family business dedicated to providing you with the best organic plant food for your garden and the planet. 100% safe for you, your children and pets.
- PLANTS LOVE IT! - Works great for all stages of plant growth, from seed to harvest it’s like giving your plants an all you can eat buffet. Because every tablespoon is loaded with every essential element, micro nutrient and trace mineral your plants need to grow and thrive. Doesn’t break down into salts like chemicals do. And it will NEVER burn your plants - Guaranteed!
- SAVE TIME AND MONEY: Skip the difficulty of making your own compost and compost tea which takes both time and skill. And there’s no need to waste time testing your soil and then treating with multiple products. It works even if you are a beginner gardener, because our organic fertilizer works for every plant you own. Healthier plants also resist insects so you don’t need harmful pesticides. Economical because one bag makes 32 gallons.
- 100% YOU’LL LOVE IT OR YOUR MONEY BACK GUARANTEE! We’re so sure you (and your plants) will love our plant fertilizer. That is why we extend a 30-day, 100% money back guarantee and invite you to reach out to us with any questions or concerns!
9. ChickenFuel Compost
7.4/10 our score
- Make sure this fits by entering your model number.
- OMRI Listed composted chicken manure. 3lb bag makes up to 50 gallons of compost tea.
- Organic fertilizer and rich in primary nutrients. NPK of 2-2-2. See website for analysis and tests.
- Increases soil microbial activity which in turn creates healthier and larger yielding plants. Loaded with bacteria.
- Hand crafted from beginning to end to deliver premium product.
- Can be brewed alone or combined with other ingredients. Applied as topsoil or mixed.
10. Down To Earth All-Purpose
7.2/10 our score
- Make sure this fits by entering your model number.
- Perfect for vegetables, herbs, flowers, trees, shrubs, and container plants
- All Purpose Mix is also ideal for all types of transplants
- Delivers a steady supply of organic nutrients that stimulate soil fertility and microbial activity to produce healthy plants naturally
- Ingredients: Fish Bone Meal, Blood Meal, Feather Meal, Rock Phosphate, Langbeinite, Greensand, Humates and Kelp Meal