---
product_id: 1332115
title: "Fish & Seaweed Liquid Fertilizer (2-3-1) - 36oz Bottle - Plant Food for Garden - Indoor & Outdoor Organic Plant Fertilizer for Vegetables, Flowers, Fruit, Trees & Lawns"
brand: "neptune's harvest"
price: "¥11411"
currency: JPY
in_stock: true
reviews_count: 13
category: "Neptune's Harvest"
url: https://www.desertcart.jp/products/1332115-fish-and-seaweed-liquid-fertilizer-2-3-1-36oz-bottle
store_origin: JP
region: Japan
---

# 25% seaweed boosts plant vitality & color 75% hydrolyzed fish for nutrient-rich feed Liquid formula for fast, even absorption Fish & Seaweed Liquid Fertilizer (2-3-1) - 36oz Bottle - Plant Food for Garden - Indoor & Outdoor Organic Plant Fertilizer for Vegetables, Flowers, Fruit, Trees & Lawns

**Brand:** neptune's harvest
**Price:** ¥11411
**Availability:** ✅ In Stock

## Summary

> 🌱 Unlock your garden’s full potential with Neptune’s Harvest—where nature meets nurture!

## Quick Answers

- **What is this?** Fish & Seaweed Liquid Fertilizer (2-3-1) - 36oz Bottle - Plant Food for Garden - Indoor & Outdoor Organic Plant Fertilizer for Vegetables, Flowers, Fruit, Trees & Lawns by neptune's harvest
- **How much does it cost?** ¥11411 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1332115-fish-and-seaweed-liquid-fertilizer-2-3-1-36oz-bottle)

## Best For

- neptune's harvest enthusiasts

## Why This Product

- Trusted neptune's harvest brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Soil Health Booster:** Feeds beneficial microbes, improves soil structure & moisture retention over time
- • **Effortless Application:** Just 1 oz per gallon—soil drench or foliar feed for flexible gardening routines
- • **OMRI Certified Organic:** Trusted, eco-friendly formula safe for kids, pets, and your garden ecosystem
- • **Balanced Nutrient Powerhouse:** 75% fish + 25% seaweed blend fuels vibrant growth indoors & out
- • **Proven Results & Rave Reviews:** Top-rated with 4.7 stars from 7,000+ gardeners who swear by its plant-thriving magic

## Overview

Neptune's Harvest Fish & Seaweed Liquid Fertilizer is a premium 36oz organic plant food combining 75% hydrolyzed fish and 25% seaweed to deliver balanced nutrients that enhance flavor, color, and growth of vegetables, flowers, fruits, trees, and lawns. Its liquid form ensures quick absorption and easy application, while its OMRI certification guarantees organic integrity. This fertilizer also improves soil health by feeding beneficial microbes and enhancing moisture retention, making it a top choice for indoor and outdoor gardeners seeking sustainable, high-performance plant nutrition.

## Description

desertcart.com : Neptune's Harvest Fish & Seaweed Liquid Fertilizer (2-3-1) - 36oz Bottle - Plant Food for Garden - Indoor & Outdoor Organic Plant Fertilizer for Vegetables, Flowers, Fruit, Trees & Lawns : Fish Emulsion Organic Fertilizer : Patio, Lawn & Garden

Review: Best fertilizer out there - Great product. In fact I went to another brand to “save money” and I’m not impressed with it. Will be switching back to Neptunes Harvest once the other is done. It makes my plants thrive!! Great consistency and thickness. It does smell gross but what do you expect lol.
Review: Great fertilizer - fishy smell - This is a great fertilizer. Some people don’t like to use this inside because of the slight fishy smell. As for me, It is worth it.

## Features

- Combined for Maximum Growth: Neptune’s Harvest Fish & Seaweed organic fertilizer is an organic all-purpose liquid plant food formulated with 75% fish and 25% seaweed for a perfect blend of nutrients; this organic plant fertilizer delivers consistent feeding as a liquid fertilizer and plant food for vegetables, flowers, trees, lawns, and indoor plants, supporting balanced growth throughout the growing season and is safe for kids and pets
- Power of Fish & Seaweed: This fish & seaweed organic plant fertilizer uses hydrolyzed fish and seaweed to supply essential nutrients in a balanced, plant-ready form; the organic all-purpose liquid fertilizer improves flavor and nutritional value of produce, brings out bright color in flowers, and supports strong plant development, making it a reliable liquid fertilizer for gardens, lawns, and indoor plants
- How to Use: This organic all-purpose liquid plant food is easy to use and highly efficient, requiring only 1 oz. per gallon of water; the liquid fertilizer can be applied as a soil drench or foliar feed and is excellent for transplants and established plants; for indoor plants, mix 1 tablespoon per gallon of water and feed weekly; for outdoor plants, mix 1/8 cup per gallon of water and apply every 1-2 weeks; this organic liquid fertilizer fits seamlessly into multiple gardening routines
- Supports Soil Performance: This fish & seaweed fertilizer builds organic matter, feeds beneficial bacteria and microbes, and improves soil structure over time; soil becomes looser, retains moisture, drains better, and supports healthier roots; this organic fish fertilizer is OMRI Listed, sequesters carbon, and helps plants become less susceptible to insects and disease while improving long-term soil quality
- Package Contents: Neptune's Harvest Fish & Seaweed Liquid Fertilizer (2-3-1) - 36oz Bottle (Pack of 1)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000OWBUSA |
| Best Sellers Rank | #1,225 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #61 in Garden Fertilizers |
| Brand | Neptune's Harvest |
| Brand Name | Neptune's Harvest |
| Coverage | Organic |
| Customer Reviews | 4.7 out of 5 stars 7,042 Reviews |
| Global Trade Identification Number | 00081435236127 |
| Included Components | Product |
| Item Form | Liquid |
| Item Type Name | organic fis and seeweed fertilizer |
| Item Weight | 2.3 pounds |
| Liquid Volume | 946 ml |
| Manufacturer | Neptune's Harvest |
| Mixing Ratio | 2:3 |
| Model Number | FS136 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | FS136 |
| Specific Uses For Product | Plant Growth |
| Target Species | Plants |
| UPC | 081435236127 |
| Unit Count | 36 Fluid Ounces |

## Product Details

- **Brand:** Neptune's Harvest
- **Item Form:** Liquid
- **Item Weight:** 2.3 pounds
- **Liquid Volume:** 946 ml
- **Specific Uses For Product:** Plant Growth

## Images

![Fish & Seaweed Liquid Fertilizer (2-3-1) - 36oz Bottle - Plant Food for Garden - Indoor & Outdoor Organic Plant Fertilizer for Vegetables, Flowers, Fruit, Trees & Lawns - Image 1](https://m.media-amazon.com/images/I/61VScWLAVnL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best fertilizer out there
*by A***A on June 30, 2026*

Great product. In fact I went to another brand to “save money” and I’m not impressed with it. Will be switching back to Neptunes Harvest once the other is done. It makes my plants thrive!! Great consistency and thickness. It does smell gross but what do you expect lol.

### ⭐⭐⭐⭐⭐ Great fertilizer - fishy smell
*by P***L on May 19, 2026*

This is a great fertilizer. Some people don’t like to use this inside because of the slight fishy smell. As for me, It is worth it.

### ⭐⭐⭐⭐⭐ Oceanic Elixir for Earthly Abundance: The Sea's Secret to Garden Glory!
*by M***. on March 17, 2023*

Dive into the bountiful benefits of Neptune's Harvest Organic Hydrolized Fish & Seaweed Fertilizer, a 36-ounce bottle of nutrient-rich goodness that will have your plants flourishing like never before! This sea-sourced solution is packed with the finest ingredients from the ocean's depths, providing your garden with a powerful blend for optimal growth. Let's set sail on the details of this aquatic agricultural ally. Pros: Oceanic offerings: Combining the best of both worlds, this fertilizer contains hydrolized fish and seaweed, providing your plants with an array of essential nutrients for healthy growth and development. Blossom bonanza: Neptune's Harvest Organic Fertilizer promotes vigorous root systems, abundant blossoms, and increased fruit production, making your garden a veritable paradise of productivity. Eco-friendly excellence: Sustainably sourced and organic, this fertilizer ensures you're not only nourishing your plants but also doing your part for Mother Earth. Versatile vitality: Suitable for a wide range of plants, from vegetables and fruits to flowers and shrubs, this fertilizer offers oceanic goodness for all your gardening needs. Cons: Pricey potion: Some users might find the cost of this fertilizer to be on the higher side. However, the exceptional results and bountiful harvest it delivers make it a worthy investment for any dedicated gardener. Aromatic adventure: Due to its organic, nutrient-rich composition, this fertilizer may have a strong, fishy odor. But fear not, for the smell is a small price to pay for the garden splendor that awaits! In conclusion, Neptune's Harvest Organic Hydrolized Fish & Seaweed Fertilizer is the sea's secret to garden glory, providing your plants with an oceanic elixir that promotes optimal growth and abundance. Embrace the power of this aquatic agricultural ally, and watch your garden transform into a flourishing haven of earthly delights!

## Frequently Bought Together

- Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 (36 Ounce)
- Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 36 oz
- Neptune's Harvest Fish Fertilizer 2-4-1, 36 Ounce

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-14*