Comparison: Best Fish Emulsion For Hydrangeas (Updated | Dec 1st)
If you’re looking to give your hydrangeas that lush, vibrant bloom they’re known for, the right fish emulsion can make all the difference. But with so many options on the market, how do you know which one truly delivers? We’ve dug into the details, tested the top contenders, and compared their nutrient content, scent levels, and real garden results. Whether you’re a seasoned gardener or just starting out, finding the best fish emulsion doesn’t have to be overwhelming—let’s break it down together and help your hydrangeas thrive.
- Best for wintergreen burn-free: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for salmon boost: Fish Emulsion Fertilizer
- Best for sustainable soil power: 1 Gallon Organic Fish Emulsion Fertilizer for Plants – Ideal Liquid Fish Fertilizer for Plants
- Best for deep green formula: Fertilome (10611) Fish Emulsion Fertilizer 5-1-1 (16 oz)
- Best for big green boost: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Best for low-odor powder: Fish Emulsion Fertilizer 12-2-2 Powder (3.3 pounds Powder-Up to 300 Gallons of Water)
- Best for odorless growth: Fish Hydrolysate Fertilizer for Vegetables & Plants – NPK 2-3-2 Fish Emulsion for Lawn
- Best for quarter salmon strength: Fish Emulsion Fertilizer
- Best for certified organic boost: Safergro Aqua Power Certified Organic Fish Emulsion Concentrate
Product Comparison: Best Fish Emulsion For Hydrangeas
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
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
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!
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.
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.
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
Fish Hydrolysate Fertilizer for Vegetables & Plants – NPK 2-3-2 Fish Emulsion for Lawn, Flowers, Fruits & Vegetables in Garden or Farm (16 fl oz)
- 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
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
Fish Emulsion Fertilizer, Complete Fish Emulsion Plant Food, 32 oz (1 Quart)
- Complete fish fertilizer for thriving plants
- Helps growth with natural harvest salmon nutrients
- Easy-to-follow care instructions included
- Made in the USA
Safergro Aqua Power Certified Organic Fish Emulsion Concentrate, 1 Quart
- OMRI certified organic liquid product
- Contains 20 amino acids, 13 vitamins and 8 minerals to promote health and growth
- 1 quart concentrate makes 6 to 10 gallons mix depending on application
- Feeds soil, plants and beneficial soil microbes
- To be used at any growth stage
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 hydrangeas?
Hydrangeas benefit from a balanced fertilizer with slightly higher nitrogen to promote foliage, such as a 5-1-1 or 2-3-1 ratio. The 5-1-1 products (Alaska, Fertilome, Liquinox) provide steady growth, while the 2-3-1 formula (Organic Fish Emulsion 1‑gallon) supports blooming. Choose the ratio that matches your garden’s stage: higher nitrogen for leaf growth, higher phosphorus for flower development.
How do liquid fish emulsions compare to powdered fish fertilizers?
Liquid emulsions, like Alaska Fish Emulsion or Safergro Aqua Power, are ready to dilute and apply, offering quick nutrient uptake and easy foliar feeding. Powdered options, such as the 12-2-2 Fish Emulsion Powder, have reduced odor and are highly concentrated, making them cost‑effective for large areas. Powders require mixing with water before use, while liquids can be mixed on‑the‑spot, which may influence convenience and storage preferences.
Is odor a concern when selecting a fish emulsion?
Yes, traditional fish emulsions can have a strong fishy smell, which some gardeners find off‑putting. Products like Alaska Fish Emulsion are deodorized with natural wintergreen, while the 12-2-2 powder advertises reduced odor. If indoor use or close proximity to living spaces is important, consider a low‑odor or deodorized formulation.
Which product offers the best value for large garden beds?
For extensive planting, the 12-2-2 Fish Emulsion Powder provides the highest yield per pound, making up to 100 gallons of feed from a single pound. The 1‑gallon Organic Fish Emulsion also offers good coverage but at a higher per‑gallon cost. Powdered fertilizer typically has a lower price‑per‑application ratio, making it the most economical choice for large beds.
Can I use the same fish emulsion on both vegetables and ornamental plants?
Most fish emulsions are versatile and safe for vegetables, flowers, shrubs, and trees, as they supply organic nitrogen and micronutrients. Products labeled non‑burning, such as Liquinox 5‑1‑1 and Safergro Aqua Power, are especially suitable for edible crops. Always follow the recommended dilution rates to avoid over‑feeding, which can affect taste or flower quality.
What additional nutrients do some fish emulsions provide beyond NPK?
Several formulations include trace minerals and amino acids that support soil microbiology. Safergro Aqua Power lists 20 amino acids, 13 vitamins, and 8 minerals, while Liquinox adds iron, manganese, and zinc for enhanced foliage color. These extra nutrients can improve overall plant vigor, especially in nutrient‑poor soils.
How important is the certification (e.g., OMRI) when buying fish emulsion?
Certification like OMRI indicates the product meets organic standards, which is crucial for growers maintaining organic certification or seeking environmentally friendly options. Safergro Aqua Power is OMRI‑certified, assuring compliance with organic regulations. While non‑certified products work well, certified ones provide added assurance for organic gardening practices.