---
product_id: 12818645
title: "Neptune’s Harvest Seaweed Plant Food (0-0-1) - Multi-Purpose Seaweed Organic Liquid Fertilizer - Indoor & Outdoor Plant Fertilizer for Lawns, Gardens, Vegetables, & Flowers (Gallon)"
brand: "neptune's harvest"
price: "€ 195.53"
currency: EUR
in_stock: true
reviews_count: 13
category: "Neptune's Harvest"
url: https://www.desertcart.hr/products/12818645-neptune-s-harvest-seaweed-plant-food-0-0-1-multi
store_origin: HR
region: Croatia
---

# 60+ nutrients from cold Atlantic kelp Covers up to 8,000 sq. ft. per gallon 0-0-1 NPK formula with potassium boost Neptune’s Harvest Seaweed Plant Food (0-0-1) - Multi-Purpose Seaweed Organic Liquid Fertilizer - Indoor & Outdoor Plant Fertilizer for Lawns, Gardens, Vegetables, & Flowers (Gallon)

**Brand:** neptune's harvest
**Price:** € 195.53
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock the secret seaweed supercharge your plants crave!

## Quick Answers

- **What is this?** Neptune’s Harvest Seaweed Plant Food (0-0-1) - Multi-Purpose Seaweed Organic Liquid Fertilizer - Indoor & Outdoor Plant Fertilizer for Lawns, Gardens, Vegetables, & Flowers (Gallon) by neptune's harvest
- **How much does it cost?** € 195.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/12818645-neptune-s-harvest-seaweed-plant-food-0-0-1-multi)

## 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

- • **Ocean-Powered Growth:** Harness the nutrient-rich power of Ascophyllum Nodosum seaweed harvested from pristine North Atlantic waters for unmatched plant vitality.
- • **Eco-Friendly & Kid-Safe:** OMRI Listed organic formula that’s safe for kids, pets, and the planet, supporting sustainable gardening practices.
- • **Stress-Proof Your Plants:** Boost plant resilience and recovery with natural amino acids that help combat environmental stress and frost damage.
- • **Versatile Indoor & Outdoor Use:** Perfectly formulated for houseplants, vegetables, flowers, and lawns—feed weekly or biweekly with easy dilution ratios.
- • **Maximize Your Garden’s Potential:** Foliar feed option enhances foliage health and extends produce shelf-life while improving soil moisture retention and carbon sequestration.

## Overview

Neptune’s Harvest Seaweed Plant Food is an organic liquid fertilizer derived from nutrient-dense Norwegian kelp, delivering over 60 essential nutrients and natural growth promoters. Its 0-0-1 formula provides potassium to enhance plant hardiness and stress recovery, suitable for indoor and outdoor use on a wide range of plants. Safe, eco-friendly, and easy to apply, it covers up to 8,000 sq. ft. per gallon, making it a premium choice for millennial gardeners seeking sustainable, high-performance plant care.

## Description

desertcart.com : Neptune’s Harvest Seaweed Plant Food (0-0-1) - Multi-Purpose Seaweed Organic Liquid Fertilizer - Indoor & Outdoor Plant Fertilizer for Lawns, Gardens, Vegetables, & Flowers (Gallon) : Fertilizers : Patio, Lawn & Garden

Review: Works great! - This product is made in my home town so that was a plus, but it’s natural and my plants grew exponentially when I fed this to them. Easy to use and safe with no awful odor I might add! And for me importantly it is organic!
Review: Great for plants! - I used this for the first time this year & I can say that my plants were very happy with my choice. I will be buying again. The price was a little higher than I expected, but all in all, not terrible for the rewards. The nice part is that you use very little in comparison to most treatments. This most definitely helped during our extremely hot and humid days in VA. I could tell my plants loved it.

## Features

- Derived for Maximum Growth: Neptune’s Harvest Organic Seaweed Plant Food is an organic seaweed liquid fertilizer made from Ascophyllum Nodosum seaweed (Norwegian kelp) in liquid form, harvested from cold North Atlantic waters; this liquid fertilizer acts as a natural storehouse of over 60 nutrients, amino acids, trace minerals, and natural growth promoters, making it suitable for both indoor & outdoor plants including houseplants, vegetables, flowers, and lawns and is safe for kids and pets
- Power of Seaweed Nutrients: This organic seaweed plant food provides naturally occurring nutrients and amino acids that support plant hardiness, stress recovery, and overall plant performance; formulated as a 0-0-1 seaweed liquid fertilizer, it supplies potassium while remaining OMRI Listed, making this organic seaweed liquid fertilizer a dependable choice for routine plant feeding
- How to Use: This versatile seaweed liquid fertilizer is easy to use for both indoor and outdoor plants; for houseplants, mix 1 tablespoon per gallon of water and feed weekly; for outdoor plants like vegetables, flowers, and shrubs, mix 1/8 cup (1 fl oz.) per gallon of water and apply every 1-2 weeks; you can also use it as a foliar feed for plant foliage or apply it to lawns to cover up to 8,000 sq. ft. during the growing season
- Supports Plant Recovery: This organic seaweed plant food works as a reliable rescue product when plants experience stress, helping increase plant hardiness and offering frost protection; this fertilizer sequesters carbon, builds organic matter, and helps soil drain yet retain moisture; when used as a foliar feed, this liquid plant fertilizer can help address powdery mildew and support longer shelf-life on produce, making it a practical organic seaweed solution
- Package Contents: Neptune’s Harvest Seaweed Plant Food (0-0-1)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Application Method | foliar feed |
| Brand | Neptune's Harvest |
| Global Trade Identification Number | 00081435140097 |
| Item Form | Liquid |
| Item Weight | 8.5 pounds |
| Liquid Volume | 1 gallons |
| Mixing Ratio | 1:1 |
| Specific Uses For Product | Promote plant development |

## Product Details

- **Brand:** Neptune's Harvest
- **Item Form:** Liquid
- **Item Weight:** 8.5 Pounds
- **Liquid Volume:** 19 Liters
- **Specific Uses For Product:** Promote plant development

## Images

![Neptune’s Harvest Seaweed Plant Food (0-0-1) - Multi-Purpose Seaweed Organic Liquid Fertilizer - Indoor & Outdoor Plant Fertilizer for Lawns, Gardens, Vegetables, & Flowers (Gallon) - Image 1](https://m.media-amazon.com/images/I/61iEDK32GoL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great!
*by C***I on November 22, 2025*

This product is made in my home town so that was a plus, but it’s natural and my plants grew exponentially when I fed this to them. Easy to use and safe with no awful odor I might add! And for me importantly it is organic!

### ⭐⭐⭐⭐⭐ Great for plants!
*by C***Y on October 30, 2025*

I used this for the first time this year & I can say that my plants were very happy with my choice. I will be buying again. The price was a little higher than I expected, but all in all, not terrible for the rewards. The nice part is that you use very little in comparison to most treatments. This most definitely helped during our extremely hot and humid days in VA. I could tell my plants loved it.

### ⭐⭐⭐⭐⭐ Worked well for foliar feeding chestnut seedlings from seed
*by S***. on July 22, 2026*

The Challenge: Chestnuts grown from seed in a pot cannot be given added compost or nitrogen fertilizer or they will not use the energy in the nut, they will use the nitrogen and develop leaves but no significant roots. Then later the new growth will run out of energy and will pull from the existing leaves. They will turn brown. To feed them so that they grow well, I foliar feed, mixing this seaweed mix with water and spraying the leaves. This encourages root growth without the nitrogen burn. I have sprayed them every 3 weeks and have noticeable big healthy leaves and growth compared to last year.

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**Shop now:** [https://www.desertcart.hr/products/12818645-neptune-s-harvest-seaweed-plant-food-0-0-1-multi](https://www.desertcart.hr/products/12818645-neptune-s-harvest-seaweed-plant-food-0-0-1-multi)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-11*