---
product_id: 255498577
title: "Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce"
brand: "neptune's harvest"
price: "$95"
currency: NZD
in_stock: true
reviews_count: 7
category: "Neptune's Harvest"
url: https://www.desertcart.nz/products/255498577-neptunes-harvest-fish-and-seaweed-fertilizer-2-3-1-18
store_origin: NZ
region: New Zealand
---

# Organic seaweed extract with natural growth hormones 2-3-1 NPK ratio for balanced growth Easy application via hand, sprayer, or drip line Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce

**Brand:** neptune's harvest
**Price:** $95
**Availability:** ✅ In Stock

## Summary

> 🌊 Grow like a pro with Neptune’s Harvest—where ocean power meets garden glory!

## Quick Answers

- **What is this?** Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce by neptune's harvest
- **How much does it cost?** $95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/255498577-neptunes-harvest-fish-and-seaweed-fertilizer-2-3-1-18)

## 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

- • **Versatile Application:** Mix, spray, or drip—effortless feeding tailored to your garden’s rhythm
- • **Nature’s Growth Boost:** Seaweed extract delivers auxins, gibberellins & cytokinins for unstoppable plant vitality
- • **Organic & Odor-Friendly:** Pure fish & seaweed blend with a fresh ocean scent—no chemical burn, just thriving plants
- • **Long-Lasting Floral Impact:** Stronger, more colorful foliage with blooms that stay fragrant and plentiful
- • **Balanced Nutrient Powerhouse:** Optimized 2-3-1 NPK ratio fuels vibrant veggies and blooms

## Overview

Neptune's Harvest Fish & Seaweed Fertilizer is an 18-ounce organic blend featuring a 2-3-1 NPK ratio derived from fish hydrolysate and seaweed extract. It promotes stronger, more colorful foliage and longer-lasting, fragrant blooms. Easy to apply by hand, sprayer, or drip line, this fertilizer enhances marketable yields and shelf life of fruits and vegetables without harsh chemical burns, making it ideal for professional gardeners seeking sustainable, high-performance plant nutrition.

## Description

Neptune's Harvest Organic Fish/Seaweed Blend Fertilizer gives you the best of both products with a perfect blend of fish hydrolysate and seaweed, ensuring a complete fertilization program. Growers using our fish/seaweed blend fertilizer on a regular basis have reported increased marketable yields and improved shelf life on fruits and vegetables. Fish and Seaweed are known to build the natural sugar in plants. Flowers and foliage will be stronger and more colorful. Blooms will be more plentiful, fragrant and longer lasting.

Review: Good - Good
Review: Recommended organic plant food. - Perfect organic fertiliser to use for house plant in hot-arid climate like in the Middle East/West Asia. Rest assured that you'll not be killing your plants with chemical burns like when you use synthetic fertilisers without circumspection. And the plants love it (including cacti). It is advertised to leech out N:P:K in proportion to 2:3:1 ratio and the seaweed Kelp (Ascophyllum Nodosum) extract will provide your plants with growth hormones like auxins, gibberellins, and cytokinins. If you use the fertiliser in quantities advised by the manufacturer you'll not perceive the smell even at a foot distance and the smell is kind of 'sea-like' or of fresh fish and not even off-putting for most.

## 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 | B009HLVIY0 |
| Batteries Included? | No |
| Brand | Neptune's Harvest |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,678) |
| Date First Available | 11 March 2013 |
| Included Components | fertilizers |
| Is Discontinued By Manufacturer | No |
| Item model number | FS118 |
| Length | 2.75 inches |
| Manufacturer | Neptune's Harvest |
| Material Type | Seaweed |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Product Dimensions | 7.62 x 7.62 x 17.78 cm; 512.56 g |
| Size | 18 oz |
| Usage | Plant Growth |
| Weight | 2.75 Pounds |
| Width | 2.75 inches |

## Product Details

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

## Images

![Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce - Image 1](https://m.media-amazon.com/images/I/61Bgc8oLKkL.jpg)

## Customer Reviews

### ⭐⭐⭐ Good
*by W***A on 30 July 2021*

Good

### ⭐⭐⭐⭐⭐ Recommended organic plant food.
*by A***N on 7 May 2021*

Perfect organic fertiliser to use for house plant in hot-arid climate like in the Middle East/West Asia. Rest assured that you'll not be killing your plants with chemical burns like when you use synthetic fertilisers without circumspection. And the plants love it (including cacti). It is advertised to leech out N:P:K in proportion to 2:3:1 ratio and the seaweed Kelp (Ascophyllum Nodosum) extract will provide your plants with growth hormones like auxins, gibberellins, and cytokinins. If you use the fertiliser in quantities advised by the manufacturer you'll not perceive the smell even at a foot distance and the smell is kind of 'sea-like' or of fresh fish and not even off-putting for most.

### ⭐⭐⭐⭐⭐ Review
*by J***. on 10 July 2024*

My roses, herbs and all other perennials love this stuff! Everything is growing, so many new shoots and the blooms are beautiful! So far, so good…Wish the bottle was a little bigger though!

## Frequently Bought Together

- Neptune's Harvest Fish & Seaweed Fertilizer 2-3-1, 18 Ounce
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-02*