---
product_id: 254328018
title: "Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1"
brand: "neptune's harvest"
price: "€ 58.48"
currency: EUR
in_stock: true
reviews_count: 6
category: "Neptune's Harvest"
url: https://www.desertcart.ie/products/254328018-neptunes-harvest-fish-and-seaweed-fertilizer-2-3-1
store_origin: IE
region: Ireland
---

# 2-3-1 NPK ratio Fish & seaweed organic blend Easy application: hand, sprayer, drip Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1

**Brand:** neptune's harvest
**Price:** € 58.48
**Availability:** ✅ In Stock

## Summary

> 🌱 Grow like a pro, naturally. Don’t let your garden miss out!

## Quick Answers

- **What is this?** Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 by neptune's harvest
- **How much does it cost?** € 58.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/254328018-neptunes-harvest-fish-and-seaweed-fertilizer-2-3-1)

## 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

- • **100% organic power:** Feed your plants naturally with a trusted fish and seaweed formula that’s eco-friendly and effective.
- • **Long-lasting blooms:** Enjoy fragrant, plentiful flowers that keep your garden lively and Instagram-worthy.
- • **Boost vibrant growth:** Unlock stronger, more colorful flowers and foliage that stand out in any garden.
- • **Maximize your harvest:** Experience bigger, juicier vegetables with every application—perfect for homegrown success.
- • **Effortless application:** Mix and apply easily by hand, sprayer, or drip line—gardening made simple and efficient.

## Overview

Neptune's Harvest Fish & Seaweed Blend Fertilizer is a premium 2-3-1 organic formula combining nutrient-rich fish and seaweed extracts. Designed for easy application via hand, sprayer, or drip line, it promotes stronger, more colorful foliage, abundant fragrant blooms, and larger vegetable yields—perfect for eco-conscious gardeners seeking vibrant, healthy plants.

## Description

Buy Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 (36 Ounce) online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Good - 👍
Review: My tomatoes and herbs love it. So do my houseplants. I love it for two reasons: One, it helps me get big vegetable yields and grow beautiful plants. Two, it's all natural. As for the price, it's fair. Not the cheapest fertilizer on the market, but it's worth every penny.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000OWBUSA |
| Batteries Included? | No |
| Brand | Neptune's Harvest |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,912) |
| Date First Available | 7 August 2012 |
| Features | organic |
| Included Components | Product |
| Is Discontinued By Manufacturer | No |
| Item model number | FS136 |
| Length | 3.5 inches |
| Manufacturer | Neptune's Harvest |
| Material Type | Seaweed |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Power Source | Manual |
| Product Dimensions | 10.16 x 10.16 x 22.86 cm; 512.56 g |
| Size | 36 Ounce |
| Style | Fertilizer |
| Usage | Organic |
| Weight | 2.6 Pounds |

## Product Details

- **Brand:** Neptune's Harvest
- **Item form:** Liquid
- **Item weight:** 1.13 Pounds
- **Liquid volume:** 18 Fluid Ounces
- **Specific uses for product:** Organic

## Images

![Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1 - Image 1](https://m.media-amazon.com/images/I/61VScWLAVnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Good
*by J***D on 24 February 2020*

👍

### ⭐⭐⭐⭐⭐ Review
*by M***E on 1 November 2025*

My tomatoes and herbs love it. So do my houseplants. I love it for two reasons: One, it helps me get big vegetable yields and grow beautiful plants. Two, it's all natural. As for the price, it's fair. Not the cheapest fertilizer on the market, but it's worth every penny.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 5 July 2025*

If I could give this 10 stars I would! Garden is sprung to life, everything is dark green and vibrant. I give half the dose of what is required and I am still impressed with the results. I've uses countless high end fertilizers, but this one is the real deal. I am growing everything from cannabis, squash, beans, greens and flowers, etc.

## 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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**Shop now:** [https://www.desertcart.ie/products/254328018-neptunes-harvest-fish-and-seaweed-fertilizer-2-3-1](https://www.desertcart.ie/products/254328018-neptunes-harvest-fish-and-seaweed-fertilizer-2-3-1)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-27*