---
product_id: 64444607
title: "Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb"
brand: "neptune's harvest"
price: "3821 kr"
currency: ISK
in_stock: false
reviews_count: 5
url: https://www.desertcart.is/products/64444607-neptunes-harvest-cs604-crab-shell-multi-purpose-plant-food-2
store_origin: IS
region: Iceland
---

# 2-3-0 N-P-K organic boost Moisture retention magic 22.95% Calcium power Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb

**Brand:** neptune's harvest
**Price:** 3821 kr
**Availability:** ❌ Out of Stock

## Summary

> 🦀 Unlock the secret to unstoppable growth with Neptune’s Harvest!

## Quick Answers

- **What is this?** Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb by neptune's harvest
- **How much does it cost?** 3821 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/64444607-neptunes-harvest-cs604-crab-shell-multi-purpose-plant-food-2)

## 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

- • **Deep Root Development:** Crab shell nutrients create stronger, deeper roots for thriving plants.
- • **Versatile Application:** Mix with soil or water for easy, effective feeding of all your plants.
- • **Soil Moisture Retention:** Enhances soil’s water-holding capacity to keep plants hydrated longer.
- • **Organic Nutrient Richness:** Packed with Calcium, Magnesium, and trace minerals for balanced growth.
- • **Eco-Friendly & Sustainable:** 100% organic crab shell formula supports healthy soil ecosystems.

## Overview

Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food is a premium 4lb organic fertilizer featuring a potent 2-3-0 N-P-K ratio enriched with 22.95% calcium and essential minerals. Designed to improve soil moisture retention and promote deep root systems, this sustainable crab shell formula delivers balanced nutrition for healthier, more resilient plants.

## Description

Product Description Panacea Hanging Plant Bracket Black 9in Hanging plant bracket, it will hold baskets, wind chimes or bird feeders. Powder-coated for added durability. Ingredients Nitrogen Total N (2.63%), Phosphate Total P205 (3.23%), Potash K20 (0.28%), Sulfur (0.2%), Magnesium (1.33%), Calcium (22.95%), Sodium (0.53%), Iron (3239 ppm), Manganese (56 ppm), Copper (23 ppm), Zinc (45 ppm), moisture (10.29%), pH (6) P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Directions Mix with soil or water and apply according to standard organic fertilizer practices, using nutrient composition as a guide. Safety Warning Avoid inhalation, ingestion, and contact with skin and eyes. Store in a cool, dry place. See more

## Features

- Neptune's Harvest Organic Crab Shell (2-3-0) is an excellent dry organic source of nutrients, including Calcium and Magnesium
- It retains moisture in the soil and builds the organic matter
- Gives roots something to grab onto, for a food source, creating a deeper root system

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B006GK5ON6 |
| Brand Name | Neptune's Harvest |
| Coverage | 4.0 pounds |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,221) 4.8 out of 5 stars |
| Global Trade Identification Number | 00081435506046 |
| Included Components | fertilizers |
| Item Form | Powder |
| Item Type Name | Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb |
| Item Weight | 1.81 Kilograms |
| Liquid Volume | 1.8 Kilograms |
| Manufacturer | Neptune's Harvest |
| Mixing Ratio | 1:1:0 |
| Model Number | CS604 |
| Number Of Items | 1 |
| Number Of Packs | 1 |
| Part Number | CS 604 |
| Specific Uses For Product | Root Development, Soil Conditioning |
| Target Species | plants |
| Unit Count | 64.0 gram |
| Upc | 081435506046 617407739725 |

## Product Details

- **Brand:** Neptune's Harvest
- **Item weight:** 4 Pounds
- **Item form:** Powder
- **Liquid volume:** 1
- **Specific uses for product:** Root Development, Soil Conditioning

## Images

![Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb - Image 1](https://m.media-amazon.com/images/I/71wtkJu6biL.jpg)
![Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb - Image 2](https://m.media-amazon.com/images/I/716707KFgtL.jpg)
![Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb - Image 3](https://m.media-amazon.com/images/I/71YlBGcfdBL.jpg)
![Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb - Image 4](https://m.media-amazon.com/images/I/81s-mqh-EWL.jpg)
![Neptune's Harvest CS604 Crab Shell Multi-Purpose Plant Food 2-3-0 4lb - Image 5](https://m.media-amazon.com/images/I/81Lui1Af72L.jpg)

## Available Options

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

## Questions & Answers

**Q: what is chitin?**
A: Chitin is most commonly recognizable as the hard whitish parts of a crab shell although it is one of the the main substances in many exoskeletons (creatures that are hard on the outside-- like crabs, lobsters and many insects-- have exoskeletons rather than internal bones).

**Q: When putting a plant in the ground, should this be put around the roots or near the top of the soil? All tips appreciated!**
A: Hi there, we generously applied the shells to the top of the soil of our raised beds and then tilled in to a depth of about 6-8". We found that this product really helped us with the calcium deficiency we were having here in Colorado, causing end-rot on our tomatoes and peppers. I think we will try applying it around the base of our plants as needed  (after big rain events) next year too because, even though it helped tremendously, a few of our plants still had some problems. I think either application of the shells, around roots or top, will work, depending on the severity and nature of your problem or your fertilizing needs. Hope this helps a little.

**Q: I assume the crab has been cooked in some way before the shell is removed.  Does anyone know how the shell is processed?**
A: I doubt it's been processed. It's simply crushed crab and crab shell. Smells like it too. Ingredients: Crushed crab and crab shell.

**Q: Can this product be used as fertilizer for my spring bulbs ?**
A: Yes, it is a fertilizer. A light fertilizer. IngredientsNitrogen Total N (2.63%), Phosphate Total P205 (3.23%), Potash K20 (0.28%), Sulfur (0.2%), Magnesium (1.33%), Calcium (22.95%), Sodium (0.53%), Iron (3239 ppm), Manganese (56 ppm), Copper (23 ppm), Zinc (45 ppm), moisture (10.29%), pH (6)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Natural amendment for a garden and flowers
*by  on Reviewed in the United States 23 June 2026*

Real quality product. Smell like lobsters and ocean seashells (does not stink). Mix into soil when planting vegetables and flowers and every year around fruit trees and grapes. Purchased twice and definitely will continue to buy as it is natural amendment for our garden.

### ⭐⭐⭐⭐⭐ Five Stars
*by  on Reviewed in Canada 7 June 2017*

This has made a fantastic addition to my organic soil mix.

### ⭐⭐⭐⭐⭐ Good Natural Fertilizer
*by  on Reviewed in the United States 7 April 2026*

Fair price, allegedly all natural fertilizer. I suggest adding it when preparing the soil with other natural fertilizers. Takes time to break down.

## Frequently Bought Together

- Neptune's Harvest Crab & Lobster Shell, 4 lb
- Neptune's Harvest Tomato & Veg Fertilizer 2-4-2, 36 oz
- Neptune's Harvest Kelp Meal Multi-Purpose Plant Food 1-0-2, 4 lb

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-09-15*