Comparison: Best Using Alaska Fish Fertilizer (Updated | Dec 1st)
Fish fertilizer made from Alaskan fish isn’t just another gardening trend—it’s a powerhouse of natural nutrients that plants absolutely love. In this article, we’ll dive into the best ways to use Alaska fish fertilizer, comparing application methods, timing, and real garden results so you can decide how to give your plants the boost they truly deserve.
- Best for omri certified boost: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for vitamin‑rich emulsion: CENTRAL GARDEN BRANDS 100099247 Fish Emul Fertilizer
- Best for wintergreen deodorized: Alaska Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Packaging may vary)
- Best for convenient 2‑pack: Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)
- Best for dual‑gallon value: ALASKA Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Тwо Расk)
- Best for phosphorus‑rich bloom: Alaska Morbloom Fertilizer Natural Concentrate 0-10-10 32 oz
- Best for bulk 6‑pack: Alaska 100545841 Fish Fertilizer 5-1-1 32 OZ (6 Pack)
- Best for deep green foliage: Fertilome (10612) Fish Emulsion Fertilizer 5-1-1 (32 oz)
- Best for odor‑free protein: Neptune’s Harvest Fish Fertilizer 2-4-1
- Best for seaweed‑boosted growth: Neptune’s Harvest Fish & Seaweed Fertilizer 2-3-1
Product Comparison: Best Using Alaska Fish Fertilizer
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
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
Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)

- 2 pack
ALASKA Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Тwо Расk)

- ALASKA Fish Emulsion Fertilizer 5-1-1 Concentrate 1 Gallon (Тwо Расk)
Alaska Morbloom Fertilizer Natural Concentrate 0-10-10 32 oz, Pack of 2

- Alaska Morbloom Fertilizer Natural Concentrate 0-10-10 32 oz, Pack of 2
- An extra flex groove offers a smooth toe-off.
- Heel-To-Toe Drop: 10 mm
- Not intended for use as Personal Protective Equipment (PPE)
Alaska 100545841 Fish Fertilizer 5-1-1 32 OZ (6 Pack)

- 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
- Fish based fertilizer for use in vegetable and flower gardens OMRI listed Great for all indoor and outdoor plants.
- Fish has been used as a natural source of plant nutrients for centuries.
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, 18 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
Neptune’s Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce

- Grow a beautiful vegetable garden
- Flowers and foliage will be stronger and more colorful
- Blooms will be more plentiful, fragrant and longer lasting
- Easy to mix and apply by hand, sprayer, or drip line
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 key factors should I consider when choosing a fish fertilizer for my garden?
Look at the N-P-K ratio to match your plant’s nutrient needs; a 5-1-1 blend is great for overall growth, while a 0-10-10 formula like Alaska Morbloom focuses on blooming. Check if the product is OMRI listed or certified organic, which matters for organic gardening standards. Also compare concentration and packaging size to gauge cost per ounce and storage convenience.
How does Alaska’s 5-1-1 fish fertilizer compare to Central Garden Brands’ fish emulsion?
Alaska’s 5-1-1 is OMRI listed and formulated for both indoor and outdoor use, offering a balanced nitrogen boost without burning plants. Central Garden Brands emphasizes 11 vitamins and a burn‑free claim, but does not list an N‑P‑K ratio, making it harder to compare nutrient levels directly. Both are organic, yet Alaska provides clearer labeling for nutrient content.
Is there a noticeable difference in odor between the various fish fertilizers?
Alaska’s fish emulsion is deodorized with natural wintergreen, reducing the typical fishy smell, while Neptune’s Harvest retains fish proteins and oils but claims no unpleasant odor due to its cold‑process method. Central Garden Brands also advertises a non‑burning, low‑odor formula. If scent is a concern, the deodorized Alaska options or Neptune’s Harvest are the best choices.
Which product offers the best value for large‑scale garden use?
For bulk applications, Alaska’s 1‑gallon concentrate (ASIN B002RH0B26) provides a low cost per ounce and can be diluted for extensive coverage. The 6‑pack of 32‑oz bottles (ASIN B0DBZYKSWW) also offers volume at a competitive price while staying OMRI listed. Compared to smaller 18‑ounce containers like Neptune’s Harvest, the larger Alaska containers deliver more fertilizer for less money.
Can I use these fish fertilizers on both vegetables and ornamental plants?
Yes, most of the listed products, including Alaska’s 5‑1‑1 and Central Garden Brands’ emulsion, are marketed for use on vegetables, fruits, flowers, and trees. The balanced nitrogen content supports leaf growth for vegetables, while the phosphorus and potassium help flowering and fruiting in ornamental plants. Always follow label dilution rates to avoid over‑feeding any plant type.
What are the benefits of choosing an OMRI‑listed fish fertilizer?
OMRI listing ensures the product meets organic certification standards, which is essential for growers who sell certified organic produce. It also indicates the fertilizer has been evaluated for safety and environmental impact. Products like Alaska’s 5‑1‑1 and the 6‑pack 32‑oz version provide this assurance, adding confidence for organic gardeners.
How do the concentration levels affect application frequency?
Higher‑concentration formulas, such as Alaska’s 1‑gallon concentrate, require more dilution, allowing you to stretch the product over many applications and reduce the frequency of repurchasing. Lower‑concentration options like Neptune’s Harvest 18‑ounce bottles are ready to mix with less water, which can be convenient for quick, frequent feedings. Choose a concentration that matches your preferred watering schedule and garden size.
