Comparison: Best Fish Emulsion Fertilizer For Fruit Trees (Updated | Dec 1st)
When it comes to growing juicy, flavorful fruit, your trees need more than just sunshine and water—they crave rich, natural nutrition. That’s where fish emulsion fertilizer shines. But with so many options on the market, how do you know which one delivers the best results? We’ve dug into the top contenders, testing for nutrient balance, ease of use, and real-world performance. Whether you’re tending apples, peaches, or citrus, we’ll help you find the perfect fishy boost for a bountiful harvest.
- Best for cold-pressed boost: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for omri certified: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for vitamin-rich formula: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for low-odor powder: Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water)
- Best for wintergreen deodorized: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for deep green growth: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Best for odorless protein: Neptune’s Harvest Fish Fertilizer 2-4-1
- Best for compact 5-1-1: Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 oz)
- Best for salmon nutrient blend: Fish Emulsion Fertilizer
- Best for fish-kelp fusion: GS Plant Foods Liquid Fish & Kelp Fertilizer (1 Gallon) – Organic Material Review Institute Listed Natural Plant Food for Home Gardens
Product Comparison: Best Fish Emulsion Fertilizer For Fruit Trees
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!
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
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
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
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
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.
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
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
GS Plant Foods Liquid Fish & Kelp Fertilizer (1 Gallon) – Organic Material Review Institute Listed Natural Plant Food for Home Gardens, Lawns, and Vegetables
- ORGANIC MATERIALS REVIEW INSTITUTE LISTED FOR TRUSTED GARDEN CARE Certified by OMRI for use in organic growing, GS Plant Foods Liquid Fish & Kelp Fertilizer delivers reliable, natural nutrition for vegetables, lawns, flowers, and shrubs.
- SEA-AND-SOIL BASED NUTRITION Made from North Atlantic seaweed (Ascophyllum nodosum) and fresh fish hydrolysate, this liquid concentrate provides essential nutrients and trace minerals that help support healthy soil and plant development.
- IMPROVES SOIL MICROBIOLOGY & NUTRIENT UPTAKE Supports a thriving soil ecosystem that promotes strong root systems and efficient nutrient absorption — the foundation for resilient, productive plants.
- EASY-TO-USE CONCENTRATE FOR ALL PLANTS Mix 2 oz per gallon of water and apply as a foliar spray or soil drench every 2–4 weeks. Safe for use on vegetables, fruits, ornamentals, turf, and houseplants.
- MADE IN THE USA – SUSTAINABLY PRODUCED Proudly produced by GS Plant Foods as a licensed fertilizer manufacturer. No synthetic chemicals, additives, or fillers — just natural ingredients formulated for healthy home gardens and hobby farms.
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 look for when fertilizing fruit trees with fish emulsion?
Fruit trees generally benefit from a higher nitrogen ratio to promote leaf growth, with a moderate amount of phosphorus and low potassium; a 2-3-1 or 5-1-1 ratio works well. Among the listed products, the 1‑gallon Organic Fish Emulsion (2‑3‑1) and the Alaska Fish Emulsion Concentrate (5‑1‑1) both meet these guidelines. Choose the ratio that matches your tree’s growth stage—higher nitrogen for young trees and a more balanced mix for mature, fruit‑bearing trees.
How does a liquid fish emulsion compare to a powdered form for feeding fruit trees?
Liquid emulsions, like the 1‑gallon Organic Fish Emulsion, are easy to mix and apply as a soil drench or foliar spray, providing quick nutrient uptake. Powdered formulas, such as the 12‑2‑2 Fish Emulsion Powder, are ultra‑concentrated, require dilution, and generate less odor, making them convenient for large orchards. For most home growers, the liquid option offers simplicity, while the powder is cost‑effective for larger volumes.
Which fish emulsion has the least fishy smell, ideal for indoor or close‑quarter use?
The Alaska Fish Emulsion Concentrate (5‑1‑1) is deodorized with natural wintergreen, significantly reducing the typical fish odor. Neptune’s Harvest also claims a no‑odor formulation thanks to its cold‑process method that retains nutrients without the smell. If odor is a primary concern, these two products are the best choices.
Is an OMRI‑listed fish emulsion important for organic gardening certification?
Yes, OMRI (Organic Materials Review Institute) listing confirms that a product complies with organic standards, which is required for certified organic production. Both the Alaska Fish Fertilizer (5‑1‑1) and GS Plant Foods Liquid Fish & Kelp Fertilizer carry OMRI certification, giving you confidence that they can be used in certified organic fruit orchards.
How do concentration and application rates differ among the fish emulsion products?
Concentrated liquids like the 1‑gallon Organic Fish Emulsion recommend 1‑2 Tbsp per gallon of water for general use, while the Alaska 5‑1‑1 concentrate suggests 4 Tbsp per gallon for trees, reflecting its higher nutrient density. The powder version (12‑2‑2) is 2× super‑concentrated, with 1 lb making up to 100 gal of feed, meaning you mix far less product for the same coverage. Always follow the label’s specific dilution rates to avoid over‑fertilizing.
Which product offers the best value per gallon for feeding fruit trees?
When comparing cost per usable gallon, the 12‑2‑2 Fish Emulsion Powder provides the most volume, covering up to 100 gallons from a 1‑lb bag, making it the most economical for large plantings. The 1‑gallon Organic Fish Emulsion is slightly pricier per gallon but offers a ready‑to‑use liquid with a balanced 2‑3‑1 ratio. For budget‑conscious growers with many trees, the powder delivers the highest value.
Do any of these fish emulsions provide extra benefits like soil microbes or micronutrients?
The 1‑gallon Organic Fish Emulsion highlights soil‑building benefits, encouraging beneficial microorganisms and improving soil structure. GS Plant Foods Liquid Fish & Kelp Fertilizer adds seaweed extract, which supplies trace minerals and supports microbial activity. Selecting a product with these added soil health features can enhance long‑term fruit tree vigor beyond basic nutrition.