Comparison: Best Alaska Fish Fertilizer For Plants (Updated | Dec 1st)
If your garden’s been craving a natural boost, you’ve probably heard about Alaska fish fertilizer. We’ve dug into the details—smell, nutrient content, sustainability, and real results—to compare the top contenders. Whether you’re growing tomatoes, flowers, or lush greens, the right fish fertilizer can make all the difference. Let’s break down what actually works, so you can feed your soil with confidence and watch your garden thrive.
- Best for omri certified: Alaska Fish Fertilizer OMRI Listed 5-1-1
- Best for vitamin-rich organic: 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 2-pack value: Lilly Miller Alaska Fish Fertilizer 5-1-1 Concentrate 1 Quart (2-Pack)
- Best for salmon nutrients: Fish Emulsion Fertilizer
- Best for bloom booster: Pennington Alaska Morbloom 0-10-10 Gallon
- Best for standard fish emulsion: Central Garden & Pet Co FERTILIZ Alaska Fish GAL
- Best for 6-pack variety: Alaska 100545841 Fish Fertilizer 5-1-1 32 OZ (6 Pack)
- Best for fish & kelp: GS Plant Foods Liquid Fish & Kelp Fertilizer (1 Gallon) – Organic Material Review Institute Listed Natural Plant Food for Home Gardens
Product Comparison: Best Alaska Fish Fertilizer For Plants
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
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 & Pet Co FERTILIZ Alaska Fish GAL
- FERTILIZ ALASKA FISH GAL
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.
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 key ingredients should I look for in an Alaska fish fertilizer?
The most important component is a high-quality fish hydrolysate that provides a balanced N-P-K ratio, typically 5-1-1. Look for OMRI certification, which confirms the product meets organic standards, and additional nutrients like trace minerals or kelp that boost soil microbiology.
How does the concentration affect how I use the fertilizer?
Concentrated formulas such as the 1‑gallon 5‑1‑1 concentrate require dilution before application, which lets you stretch the product over a larger area and customize feeding rates. Pre‑diluted options like the 115 oz bottle are ready to use but may need more frequent re‑application to maintain nutrient levels.
Are there noticeable differences between the OMRI‑listed products and the non‑listed ones?
OMRI‑listed fertilizers, like the Alaska Fish Fertilizer 5‑1‑1, guarantee compliance with organic certification programs, making them ideal for certified organic gardens. Non‑listed products may still be organic but lack the official verification, which can matter for growers who need documented compliance.
Which product gives the best value for a large garden?
For extensive planting, the 1‑gallon concentrate (B002RH0B26) offers the lowest cost per ounce and can be diluted to cover many square feet. If you prefer smaller, ready‑to‑use containers, the 2‑pack quart (B07D8ZP34L) provides convenience but at a higher price per volume.
Do any of these fertilizers have a strong odor that might be a problem indoors?
The Alaska Fish Emulsion 5‑1‑1 (B002RH0B26) is deodorized with natural wintergreen, reducing the typical fish smell and making it suitable for indoor use. Most other fish fertilizers have a mild fish scent, but proper dilution and application in well‑ventilated areas usually keep odors manageable.
How important is the presence of additional vitamins or kelp in these products?
Formulations that include extra vitamins, like the Central Garden Brands Fish Emul (B000BX4QGK), can enhance leaf growth and overall plant vigor. Kelp‑based additives, found in the GS Plant Foods Liquid Fish & Kelp Fertilizer, supply trace minerals and hormones that improve root development and stress tolerance.
What should I consider when choosing between a liquid concentrate and a ready‑to‑use emulsion?
Liquid concentrates give you flexibility to adjust strength for different plant stages, which can be more economical for seasoned gardeners. Ready‑to‑use emulsions are convenient for beginners and reduce the risk of over‑dilution, but they often cost more per unit of nutrients delivered.