Skip to content
  • 🔥 Hurry, snap up amazing deals on 🌟Featured Items🌟 and gifts!🔥
  • 🔥 Hurry, snap up amazing deals on 🌟Featured Items🌟 and gifts!🔥
Landscape greening equipmentLandscape greening equipment
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Nursery Supplies
    • Nursery Pots
    • Plant Supports
    • Weed Control
    • Ground Cover
    • Soilless Mix
  • Gardening & Landscaping Tools
    • Yard & Garden Rakes
    • Spades
    • Scoops and Shovels
    • Striking Tools
    • Cultivators & Weeders
    • Garden Hand Tools
    • Utility Knives & Multitools
    • Garden Forks
    • Grafting Knife
  • Pruning Tools & Equipment
    • Pruners
    • Pruning Saws
    • Pole Pruners and Saws
    • Loppers
    • Hedge Shears
    • Shear Cases
  • Hardscaping & Construction Tools
    • Hammers & Mallets
    • Hardscape Power Equipment
    • Measuring & Layout Tools
    • Paver Tools
    • Building Materials
    • Concrete & Masonry Tools
  • Lawn Sprayers & Spreaders
    • Spreaders
    • Power Sprayers
    • Backpack Sprayers
    • Sprayers
    • Applicators & Dispensers
    • Fertilizer Injection System
    • Pull Behind Sprayers
  • Fertilizers & Treatments
    • Soil Amendments
    • Slow Release Fertilizer
    • Lawn & Grass Fertilizer
    • Organic Fertilizer
    • Water Soluble Fertilizer
    • Plant and Flower Fertilizer
    • Rooting Hormone
    • Anti-Transpirant
Fertilizers & Treatments / Organic Fertilizer
Sale!
Neptune's Harvest Hydrolyzed Fish Fertilizer 2-4-1, 1 Quart

Neptune’s Harvest Hydrolyzed Fish Fertilizer 2-4-1, 1 Quart

$18.07 Original price was: $18.07.$12.65Current price is: $12.65.

SKU: YW1SZ 630661992 Categories: Fertilizers & Treatments, Organic Fertilizer
  • Your happiness, our mission.
  • Online customer care, always here for you.
  • Reliable Payments for Reliable Shopping
  • 100% High-Quality Guarantee
Browse
  • Fertilizers & Treatments
    • Anti-Transpirant
    • Lawn & Grass Fertilizer
    • Organic Fertilizer
    • Plant and Flower Fertilizer
    • Rooting Hormone
    • Slow Release Fertilizer
    • Soil Amendments
    • Water Soluble Fertilizer
  • Gardening & Landscaping Tools
    • Cultivators & Weeders
    • Garden Forks
    • Garden Hand Tools
    • Grafting Knife
    • Scoops and Shovels
    • Spades
    • Striking Tools
    • Utility Knives & Multitools
    • Yard & Garden Rakes
  • Hardscaping & Construction Tools
    • Building Materials
    • Concrete & Masonry Tools
    • Hammers & Mallets
    • Hardscape Power Equipment
    • Measuring & Layout Tools
    • Paver Tools
  • Lawn Sprayers & Spreaders
    • Applicators & Dispensers
    • Backpack Sprayers
    • Fertilizer Injection System
    • Power Sprayers
    • Pull Behind Sprayers
    • Sprayers
    • Spreaders
  • Nursery Supplies
    • Ground Cover
    • Nursery Pots
    • Plant Supports
    • Soilless Mix
    • Weed Control
  • Pruning Tools & Equipment
    • Hedge Shears
    • Loppers
    • Pole Pruners and Saws
    • Pruners
    • Pruning Saws
    • Shear Cases
  • Uncategorized
  • Description
  • Reviews (0)

Contains all the micro and macro nutrients naturally found in fish.

This organic fertilizer is made from fresh North Atlantic fish using a unique cold process that protects the vitamins, amino acids, enzymes and growth hormones. The nitrogen and other nutrients are chelated, so they are readily available for plants consumption.

Unlike fish emulsions, Neptune’s Harvest retains the fish proteins and oils and has no unpleasant odor. University studies have shown Neptune’s Harvest to outperform chemical fertilizers.

Tested and proven with excellent results by many gardeners. Neptune’s Harvest All Natural Organic Fertilizers and Amendments are OMRI listed for use in organic growing.

Product Specs
  • 2-4-1 fertilizer formula
  • Derived from hydrolyzed fish and phosphoric acid (used as a stabilizer)
  • 1 quart jug
Product Warranty Information

Neptune's Harvest Hydrolyzed Fish Fertilizer 2-4-1, 1 Quart -Landscape greening equipment Down to Earth Guarantee web 2

  • This product is covered under A.M. Leonard’s exclusive 30-Day Down to Earth Guarantee. Click Here for more Details.
Product Features
  • Use as a fertilizer for house plants and outdoor plants, as well as for seed germination and compost enhancement
Frequently Asked Questions
What is Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart?
Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart is an organic fertilizer made from fresh North Atlantic fish using a unique cold process that retains all the micro and macro nutrients naturally found in fish. The nitrogen and other nutrients are chelated, so they are readily available for plants consumption. It is an OMRI listed fertilizer, which makes it suitable for use in organic growing. The fertilizer formula is 2 4 1.

What are the benefits of using Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart?
Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart provides all the vital nutrients that plants need to grow healthy and strong. It is an organic fertilizer which means that it is safe for the environment and does not contain any harmful chemicals. The unique cold process used to make the fertilizer ensures that all the vitamins, amino acids, enzymes and growth hormones are retained. Unlike fish emulsions, it has no unpleasant odor. University studies have shown that Neptune’s Harvest outperforms chemical fertilizers with excellent results by many gardeners.

What is the fertilizer formula of Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart?
The fertilizer formula of Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart is 2 4 1. It is derived from hydrolyzed fish and phosphoric acid (used as a stabilizer) and contains all the micro and macro nutrients naturally found in fish. The nitrogen and other nutrients are chelated, so they are readily available for plants consumption.

How can Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart be used?
Neptune’s Harvest Hydrolyzed Fish Fertilizer 2 4 1, 1 Quart can be used as a fertilizer for house plants and outdoor plants, as well as for seed germination and compost enhancement. It is easy to use, just mix the required amount with water and apply it to the soil. For best results, apply the fertilizer in early spring and throughout the growing season.

Additional Product Information
  • Label
  • SDS

Reviews

There are no reviews yet.

Be the first to review “Neptune’s Harvest Hydrolyzed Fish Fertilizer 2-4-1, 1 Quart” Cancel reply

Related products

Sale!
Neptune's Harvest 2-4-2 Tomato & Veg Formula, 1 Gallon
Quick View

Fertilizers & Treatments

Neptune’s Harvest 2-4-2 Tomato & Veg Formula, 1 Gallon

$78.55 Original price was: $78.55.$54.99Current price is: $54.99.
Sale!
Grotab 3-in-1 Premium Plant Starter (12-8-4), 500 Tabs
Quick View

Fertilizers & Treatments

Grotab 3-in-1 Premium Plant Starter (12-8-4), 500 Tabs

$196.50 Original price was: $196.50.$99.99Current price is: $99.99.
Sale!
Fairlawn Shade Mix, 5 Lb Bag
Quick View

Fertilizers & Treatments

Fairlawn Shade Mix, 5 Lb Bag

$42.10 Original price was: $42.10.$29.47Current price is: $29.47.
Sale!
Hydretain ES Plus II, 32oz. Hose-End RTU Bottle
Quick View

Fertilizers & Treatments

Hydretain ES Plus II, 32oz. Hose-End RTU Bottle

$34.45 Original price was: $34.45.$24.12Current price is: $24.12.
Sale!
SUPERthrive Vitamin Solution
Quick View

Fertilizers & Treatments

SUPERthrive Vitamin Solution

$12.95 Original price was: $12.95.$9.07Current price is: $9.07.
Sale!
Hormodin 2 Rooting Compound 1lb Container For Woody Plants
Quick View

Fertilizers & Treatments

Hormodin 2 Rooting Compound 1lb Container For Woody Plants

$61.35 Original price was: $61.35.$42.95Current price is: $42.95.
Sale!
Nitrogreen Organic 13-0-0 Fertilizer
Quick View

Fertilizers & Treatments

Nitrogreen Organic 13-0-0 Fertilizer

$12.48 Original price was: $12.48.$8.74Current price is: $8.74.
Sale!
Fairlawn Blue And Rye Mix, 25 Lb Bag
Quick View

Fertilizers & Treatments

Fairlawn Blue And Rye Mix, 25 Lb Bag

$176.95 Original price was: $176.95.$96.99Current price is: $96.99.
LEGAL
  • Privacy Policy
  • Shipping & Returns
  • FAQ
  • Returns & Exchanges
  • Term and Conditions
CUSTOMER SERVICE
  • My account
  • Delivery
  • Payment Method
  • Contact Us
  • About Us
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.outdoorgreenery.com
    • Nursery Supplies
      • Nursery Pots
      • Plant Supports
      • Weed Control
      • Ground Cover
      • Soilless Mix
    • Gardening & Landscaping Tools
      • Yard & Garden Rakes
      • Spades
      • Scoops and Shovels
      • Striking Tools
      • Cultivators & Weeders
      • Garden Hand Tools
      • Utility Knives & Multitools
      • Garden Forks
      • Grafting Knife
    • Pruning Tools & Equipment
      • Pruners
      • Pruning Saws
      • Pole Pruners and Saws
      • Loppers
      • Hedge Shears
      • Shear Cases
    • Hardscaping & Construction Tools
      • Hammers & Mallets
      • Hardscape Power Equipment
      • Measuring & Layout Tools
      • Paver Tools
      • Building Materials
      • Concrete & Masonry Tools
    • Lawn Sprayers & Spreaders
      • Spreaders
      • Power Sprayers
      • Backpack Sprayers
      • Sprayers
      • Applicators & Dispensers
      • Fertilizer Injection System
      • Pull Behind Sprayers
    • Fertilizers & Treatments
      • Soil Amendments
      • Slow Release Fertilizer
      • Lawn & Grass Fertilizer
      • Organic Fertilizer
      • Water Soluble Fertilizer
      • Plant and Flower Fertilizer
      • Rooting Hormone
      • Anti-Transpirant
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.