Comparison: Best Fish Emulsion For Potatoes (Updated | Dec 1st)

But with so many fish emulsions on the market, how do you pick the best one? We’ve dug into the details—literally and figuratively—to compare top-rated fish emulsions that boost tuber growth, improve soil health, and deliver real results. Whether you’re a backyard gardener or a potato pro, this comparison will help you choose the right feed to grow bigger, healthier spuds—naturally and effectively.

Product Comparison: Best Fish Emulsion For Potatoes

Wintergreen Fresh

Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)

Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)

Alaska
  • 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

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Salmon Nutrient Boost

Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 8 oz (250mL)

Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 8 oz (250mL)

TPS NUTRIENTS
  • Complete fish fertilizer for thriving plants
  • Helps growth with natural harvest salmon nutrients
  • Easy-to-follow care instructions included
  • Made in the USA

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Deep Green Growth

Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)

Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)

ferti-lome
  • 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.

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Cold-Pressed Yield

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

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

The Grow Co
  • 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!

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Compact Versatile

Fish Emulsion 16OZ CONC

Fish Emulsion 16OZ CONC

VPG
  • Total Nitrogen – 5% Available Phosphate – 1% Soluble Potash – 1%
  • For use in Potted and house plants, fruits, vegetables, ornamentals and shade trees: african violets, ferns, tuberous begonias, camellias, azaleas, rhododendrons, acid-tolerant plants, fuchsias, chrysanthemums, orchids, vegetables, shrubs, berries, trees (fruit, shade, deciduous), roses, flowers (annual and perennial), and transplants * See label for complete list

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Low-Odor Powder

Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water), for Vegetables, Trees, Lawns, Shrubs, Flowers, Fruits

Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water), for Vegetables, Trees, Lawns, Shrubs, Flowers, Fruits

LORD OF MILLET
  • 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

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Hydrolysate Versatile

Fish Hydrolysate Fertilizer for Vegetables & Plants – NPK 2-3-2 Fish Emulsion for Lawn, Flowers, Fruits & Vegetables in Garden or Farm (16 fl oz)

Fish Hydrolysate Fertilizer for Vegetables & Plants - NPK 2-3-2 Fish Emulsion for Lawn, Flowers, Fruits & Vegetables in Garden or Farm (16 fl oz)

PLANTCO
  • Rich in amino acids and nutrients
  • Natural and eco-friendly
  • Boosts plant growth and vitality
  • Works both as soil drench & foliar spray
  • helps add organic matter to soil
  • Will not burn plants, no bad odor

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Kelp-Boost Blend

EB Stone Fish Emulsion with Kelp, Quart Size

EB Stone Fish Emulsion with Kelp, Quart Size

EB Stone Organics
  • All natural plant food to help plants grow, flower, fruit and stay deep green.
  • This liquid fertilizer is concentrated and must be diluted before use.
  • Derived from: Whole fish and Kelp.
  • Quart size

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Liquinox 7128 Fish Emulsion 5-1-1 Fertilizer, 1-Gallon

Liquinox 7128 Fish Emulsion 5-1-1 Fertilizer, 1-Gallon

Liquinox
  • 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

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Salmon Power Quart

Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 32 oz (1 Quart)

Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 32 oz (1 Quart)

TPS NUTRIENTS
  • Complete fish fertilizer for thriving plants
  • Helps growth with natural harvest salmon nutrients
  • Easy-to-follow care instructions included
  • Made in the USA

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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

Buying Guide: Best Fish Emulsion For Potatoes

Nutrient Content & Ratios

  • Look for an NPK ratio that emphasizes nitrogen (e.g., 5‑1‑1 or 2‑3‑1) to promote vigorous leaf growth early in the season
  • Check the percentage of available nitrogen, as potatoes need strong foliage to support tuber development
  • Ensure the formula includes micronutrients such as iron, manganese, and zinc for balanced root health
  • Prefer products that list a clear breakdown of macronutrients and any added organic matter

Application Guidelines for Potatoes

  • Dilute according to the manufacturer’s recommendation (typically 1‑2 Tbsp per gallon of water for foliage, higher for soil drench)
  • Apply as a soil drench at planting and again when plants begin to flower for maximum tuber yield
  • Use a foliar spray early in the season to boost leaf area, then switch to root feeding as tubers form
  • Space applications 2‑3 weeks apart to avoid nutrient buildup and prevent leaf burn

Odor & Handling

  • Choose deodorized formulas (e.g., wintergreen‑scented) if indoor use or close proximity to living spaces is a concern
  • If odor is not an issue, a traditional fishy scent often indicates a higher concentration of real fish protein
  • Check for low‑odor powder options that reduce mess and storage odors while retaining nutrient value
  • Wear gloves and eye protection when mixing concentrated solutions to avoid skin irritation

Packaging Size & Storage

  • Gallon‑size containers are cost‑effective for large garden plots, while quart or 8‑oz bottles suit container growers
  • Look for airtight seals or dark bottles that protect the emulsion from UV degradation and extend shelf life
  • Consider products with clear label instructions for mixing ratios to simplify field use
  • Store in a cool, dry place; some emulsions remain stable for up to 12 months when unopened

Organic & Sustainability Credentials

  • Prefer certified organic emulsions that are free from synthetic additives and meet USDA organic standards
  • Check for cold‑pressed or cold‑extracted processing, which preserves amino acids and vitamins
  • Products that use whole‑fish or fish‑by‑product streams reduce waste and support sustainable fisheries
  • Look for additional natural additives such as kelp or humic acids that enhance soil biology

FAQs

What NPK ratio is best for feeding potatoes with fish emulsion?

Potatoes benefit from a balanced nitrogen to phosphorus to potassium ratio that supports tuber development, typically around 5-1-1 or 2-3-1. Products like Alaska Fish Emulsion (5-1-1) and the 1‑gallon organic fish emulsion (2-3-1) both provide suitable ratios, but the lower nitrogen of 2-3-1 can reduce excessive foliage growth and focus energy on roots.

How does liquid fish emulsion compare to powdered fish fertilizer for large garden beds?

Liquid emulsions, such as the 1‑gallon Alaska or Liquinox 5‑1‑1, are easy to mix and apply directly to soil or as a foliar spray, making them convenient for small to medium plots. Powdered options like the 12‑2‑2 Fish Emulsion Powder produce a highly concentrated feed that can cover up to 100 gallons per pound, which is more cost‑effective for extensive vegetable rows but requires extra mixing steps.

Which product has the least odor for indoor potato cultivation?

Powdered fish emulsion (12‑2‑2) is formulated to reduce the strong fishy smell, making it a better choice for indoor or greenhouse settings. Liquid formulas, especially the 1‑gallon organic fish emulsion, retain a noticeable fish odor, which some growers find unpleasant in enclosed spaces.

Are there any fish emulsion products that include additional micronutrients?

Yes, several emulsions add trace minerals; Liquinox 5‑1‑1 lists iron, manganese, and zinc, while the Alaska Fish Emulsion highlights a wintergreen deodorizer but does not specify micronutrients. If micronutrient enrichment is important, choose a product that explicitly mentions these additives.

What should I consider about concentration when mixing fish emulsion for potatoes?

Concentration determines how much product you need per gallon of water; higher‑concentration liquids like the Alaska 5‑1‑1 recommend 1‑2 tablespoons per gallon, while the 12‑2‑2 powder requires only a fraction of a pound for the same volume. Using a more concentrated formula can reduce storage space and cost, but be careful to dilute correctly to avoid leaf burn.

Is there a benefit to choosing a fish emulsion that includes kelp?

Kelp adds natural hormones and micronutrients that can improve root growth and stress tolerance. The EB Stone Fish Emulsion with Kelp combines both fish nutrients and kelp, offering a broader spectrum of benefits compared to pure fish emulsions.

How do organic certifications affect value for home gardeners?

Organic‑certified emulsions, such as the 1‑gallon organic fish emulsion, guarantee that no synthetic chemicals were used in production, which appeals to gardeners seeking sustainable practices. While organic products may carry a higher price tag, they often align with soil‑health goals and can be marketed as premium, adding perceived value.

What are the key buying tips for selecting a fish emulsion for potatoes?

Look for an NPK ratio that supports tuber growth (5‑1‑1 or 2‑3‑1), check for added micronutrients, consider odor level if you’ll be using it indoors, and decide between liquid versus powder based on garden size and storage space. Also, verify organic status and read label instructions for proper dilution to ensure safe, effective feeding.

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