Comparison: Best Fish Emulsion Fertilizer Uses (Updated | Dec 1st)
If your garden’s looking a little lackluster, it might just be craving the natural boost that fish emulsion fertilizer provides. Packed with nutrients and loved by organic growers, this smelly but mighty amendment can work wonders—if you know how to use it right.
- Best for compact green boost: Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 oz)
- Best for salmon nutrient blend: Fish Emulsion Fertilizer
- Best for all‑plant vitamin boost: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for omri certified organic: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for wintergreen deodorized: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for cold‑pressed pure: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for low‑odor powder: Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water)
- Best for large scale boost: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Best for iron‑rich liquid: Liquinox 7128 Fish Emulsion 5-1-1 Fertilizer
- Best for odorless protein: Neptune’s Harvest Fish Fertilizer 2-4-1
Product Comparison: Best Fish Emulsion Fertilizer Uses
Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 oz)
- Develops deep green foliage, vigorous root systems and a solid plant structure
- Derived from fish soluble, can be used from indoor and outdoor. Can be used on plants and trees.
- Mixes with water and can be used by any convenient method of application. Shake well before use.
- 5-1-1 Fertilizer contains 5% Nitrogen, 1% Phosphate and 1% Soluble Potash.
- For plants mix 1-2 tbsp per 1 gal of water. For trees mix 4 tbsp per gal of water.
Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 8 oz (250mL)
- Complete fish fertilizer for thriving plants
- Helps growth with natural harvest salmon nutrients
- Easy-to-follow care instructions included
- Made in the USA
CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer, 1 Quart
- Promotes healthy plant growth with 11 vitamins
- Can be used on all indoor and outdoor plants
- 100-percent organic
- Stimulates microorganisms
- Does not burn
Alaska Fish Fertilizer OMRI Listed 5-1-1, 115 oz
- Fish-based fertilizer for use in vegetable, fruit, and flower gardens
- Excellent for use on flowers, trees, and other plants
- OMRI listed
- For organic gardening
- Great for all indoor and outdoor plants
- NPK 5-1-1 fish emulsion fertilizer
- Fish has been used as a natural source of plant nutrients for centuries
- Easy to use, just mix with water
Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Will Not Burn
- Great for all plants
- Deodorized with Natural Wintergreen
- 5-1-1 fertilizer is an excellent source of organic plant nutrients
- Fish Fertilizer
1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants, Flowers, Fruits & Vegetables, 2-3-1 NPK – Sustainably Sourced and Hydrolyzed for Steady Growth
- ORGANIC FISH EMULSION FERTILIZER – Our liquid fish fertilizer is made from sustainably sourced fish emulsion and we use up all the parts that would otherwise go to waste. Using an environmentally conscious method, ingredients are refined fresh and 100% cold pressed to help retain all of the nutrients, vitamins, and amino acids needed to grow healthy plants.
- GROW PLANTS NATURALLY – This wonderfully organic alternative to synthetic fertilizer contains a 2-3-1 NPK ratio perfect for light and frequent applications. Promotes steady, healthy plant development throughout the growing season.
- ENRICHES SOIL – Helps build a strong foundation for your organic garden to thrive on! Use as an effective soil drench to improve fertility, structure, and encourage the growth of beneficial microorganisms like fungi in your garden’s soil.
- PRODUCE MORE – Get the most out of your fertilizer and your garden! This organic garden fertilizer helps to increase crop yields and flower blooms. Gentle enough to use as a foliar spray makes this the perfect fish fertilizer for plants, flowers, and vegetables.
- SMELL THE DIFFERENCE – This fertilizer smells like fish because it’s made from fish! Crafted with high-quality concentrated and undiluted hydrolyzed fish emulsion each bottle gives off a pungent fishy aroma. When compared, we see it like this – if it doesn’t smell, then it’s not real fish!
Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water), for Vegetables, Trees, Lawns, Shrubs, Flowers, Fruits
- Organic Fish Protein :12-2-2 NPK powder made from 100% fish dried liquid powder, ground, and highly water-soluble when mixed.
- 2× Super Concentrated Powder: 1 lb (≈450 g) makes up to 100 gal of liquid feed,ideal for both large veggie plots and indoor/hydro gardens, creating high-value yield.
- Proven Results and Trusted Organic Fertilizer: Comparison experient conducted on same seed, same soil. The fertilizer supports visible growth and robust fruit set.
- Promotes Healthier Roots & Foliage: Rich in natural amino acids and micronutrients, boosts plant stress resistance, soil biology, and nutrient uptake.
- Reduced Odor, Easy to Use: Dry powder form alleviates the strong “fishy” smell of traditional emulsions. Simple to store, measure, and apply; mix and water every 1–2 weeks.
- Sustainable & Responsibly Sourced: Made in small batches from by products of the fish meal industry, organically biodegradable with minimal waste.
- Includes a teaspoon for ease of measurement
Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Develops deep green foliage, vigorous root systems and a solid plant structure
- Derived from fish soluble, can be used from indoor and outdoor. Can be used on plants and trees.
- Mixes with water and can be used by any convenient method of application. Shake well before use.
- 5-1-1 Fertilizer contains 5% Nitrogen, 1% Phosphate and 1% Soluble Potash.
- For plants mix 1-2 tbsp per 1 gal of water. For trees mix 4 tbsp per gal of water.
Liquinox 7128 Fish Emulsion 5-1-1 Fertilizer, 1-Gallon
- All purpose liquid fish fertilizer: Use on flowers, lawns, shrubs, trees, and other outdoor plants
- Primary nutrients source: Derived from seagoing fish
- Active ingredients: Includes iron, manganese, and zinc
- Fish emulsion 5-1-1: Suitable for soil or foliar application
- Safe and nonburning: Ideal for use on vegetables, flowers, shrubs, lawns, and trees
- Versatile application: Can be used on potted and house plants, fruits, vegetables, ornamentals, and shade trees
- Application rate: Recommended usage is 2 tablespoons per gallon monthly during the growing and blooming season
- Product type: Liquid fertilizer
- Package size: Available in a 1-gallon container
- Manufacturer: Liquinox
Neptune’s Harvest Fish Fertilizer 2-4-1, 36 Ounce
- Neptune’s Harvest is an organic fertilizer made from fresh north Atlantic fish
- It is made by a unique cold process that protects the vitamins, amino acids, enzymes and growth hormones
- It also contains all the micro and macro nutrients naturally found in fish
- Unlike fish emulsions, Neptune’s Harvest retains the fish proteins and oils and has no unpleasant odor
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What NPK ratio should I choose for my garden, and how do the listed products differ?
For general vegetable and flower beds, a balanced 5-1-1 ratio works well for steady growth, while a higher nitrogen 12-2-2 powder is ideal for rapid foliage development. The Fertilome and Alaska concentrates use 5-1-1, whereas the powder from B0F38LT29B offers 12-2-2. Choose based on whether you need more leaf growth (higher N) or a moderate, all‑purpose feed.
Is a liquid fish emulsion better than a powdered form?
Liquids like Fertilome, Liquinox, and the 1‑gallon organic fish emulsion are quick to mix and can be applied as a foliar spray or soil drench, which is convenient for indoor pots and small beds. Powders such as the 12-2-2 formulation are ultra‑concentrated, reduce storage space, and produce less odor, making them suitable for large outdoor plots. Your choice depends on ease of use versus volume efficiency.
How important is organic certification when buying fish emulsion?
Organic labels (e.g., OMRI‑listed Alaska Fish Fertilizer) assure the product meets strict standards for natural ingredients and no synthetic additives, which is crucial for certified organic gardens. Products without an explicit certification, like some generic brands, may still be natural but lack third‑party verification. If you grow food for market sales, opting for certified organic ensures compliance.
What should I consider about odor when selecting a fish fertilizer?
Traditional liquid emulsions can have a strong fishy smell, which some gardeners find unpleasant. The Alaska 1‑gallon concentrate is deodorized with natural wintergreen, while the powder version minimizes odor by being dry. If you plan indoor applications or have close neighbors, choose a low‑odor or powder product.
How do I calculate the value per ounce or gallon across these options?
Compare the price per unit of nutrient content: a 5‑1‑1 liquid at 1 gallon typically provides more applications per dollar than an 8 oz bottle, while the 12‑2‑2 powder yields up to 100 gallons of feed from 1 lb, offering excellent cost efficiency for large beds. Look for the total NPK grams per container and divide by price to gauge true value.
Can I use the same fish emulsion on both indoor houseplants and outdoor trees?
Yes, most products listed, such as Fertilome and the Alaska concentrates, are formulated for both indoor and outdoor use, with recommended dilution rates differing for plants (1‑2 Tbsp per gallon) versus trees (4 Tbsp per gallon). Always start with the lower concentration on sensitive indoor foliage to avoid leaf burn.
What additional micronutrients should I look for in a fish fertilizer?
Some emulsions, like Liquinox, include iron, manganese, and zinc, which help correct common deficiencies in soil. While all fish‑based products contain trace minerals naturally, those that list specific micronutrients give you extra assurance of balanced nutrition, especially for fruit‑bearing plants.
How often should I apply fish emulsion for optimal growth?
Light, frequent applications work best; most manufacturers recommend feeding every 1–2 weeks during the active growing season. Concentrated formulas (5‑1‑1) can be applied every two weeks, while the higher‑N powder may be used weekly for fast‑growing greens. Adjust frequency based on plant response and soil test results.