Organic Liquid Fish Fertilizer - Hydrolyzed Plant Food, 275 Gallons

In this review of GS Plant Foods Organic Liquid Fish Fertilizer the bottom line is simple: gardeners and commercial growers who want a concentrated, OMRI-listed organic soil and foliar feed will appreciate its broad nutrient profile and soil-building benefits. The product stands out because it is a hydrolyzed fish concentrate that supplies more than just N-P-K, delivering peptides, micro nutrients and calcium in a form plants readily uptake. It is best suited to users able to handle a large-volume container and who accept a distinct fish odor as part of the package.

Key Features

• OMRI Listed: Certified for organic production so it can be used in certified organic programs and backyard organic gardens without synthetic residues.
• Hydrolyzed fish formula: The hydrolyzed process makes proteins and peptides more available, helping with quicker nutrient assimilation and improved plant vigor.
• Broad nutrient mix: Supplies macro and micro nutrients, minerals and calcium beyond simple N-P-K for more balanced growth and better color.
• Soil health benefits: Regular use promotes beneficial soil biology and improved rooting, which supports longer-term soil structure and fertility.
• Versatile application: Can be applied as a soil drench or foliar feed and works well alongside other fertilizers such as liquid kelp for synergistic results.
• Commercial scale ready: Packaged in a 275 gallon size that supports large-scale orchards, nurseries or commercial turf programs.

Who It's For

This product is aimed at serious gardeners, landscapers and commercial growers who need a concentrated, organic fertilizer that improves soil life and plant health. It is particularly useful for vegetable producers, fruit growers, turf managers and tree and shrub maintenance where a steady, biologically active feed is preferred.

It is not ideal for casual hobbyists who want small, easy-to-store bottles, or for people who cannot tolerate a fishy smell during application. Home users with small gardens should consider smaller formats or diluted application planning before committing to a 275 gallon supply.

Pros & Cons

Pros

• OMRI-listed and suitable for certified organic programs and home organic gardens.
• Provides a wide range of macro and micro nutrients, peptides and calcium for better nutrient uptake and plant color.
• Promotes soil biology and rooting, leading to healthier long-term soil structure and plant resilience.

Cons

• Distinct fish odor noted by some customers, which can be off-putting during application.
• Large 275 gallon size requires space and logistics for storage and handling, so not practical for small-scale users.

Specifications

Product	Organic Liquid Fish Fertilizer
Formulation	Hydrolyzed fish concentrate
Certification	OMRI organic listed
Volume	275 gallons
Key contents	Macro and micro nutrients, minerals, peptides, proteins, calcium
Application methods	Soil drench, foliar feed, lawn dilution rates provided

Our Verdict

GS Plant Foods Organic Liquid Fish Fertilizer is a pragmatic choice for growers who prioritize organic certification, soil health and a broad nutrient profile. While the fishy aroma and large bulk size demand planning, the hydrolyzed formula and soil-building benefits make it a cost-effective feed for commercial operations and serious home gardeners seeking long-term plant vigor and improved yields.

Frequently Asked Questions

Is this safe for certified organic gardens?
Yes, it is OMRI-listed and suitable for use in certified organic and organic home gardens.

How should it be applied to trees and shrubs?
Use about 4 oz per gallon of water and feed by boring small holes 1 to 2 ft away from the root ball, then fill holes with solution.

Will it work with other fertilizers?
Yes; it works synergistically with other fertilizers, especially liquid kelp, and can be used as part of a regular maintenance program.