---
product_id: 638636546
title: "Seaweed and Kelp Fertilizer for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 Liters"
brand: "greenleaf nutrients"
price: "€ 29.02"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/638636546-seaweed-and-kelp-fertilizer-for-plants-organic-sea-k-concentrated
store_origin: GR
region: Greece
---

# 18%+ soluble potassium 70+ vitamins & minerals 100% water soluble powder Seaweed and Kelp Fertilizer for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 Liters

**Brand:** greenleaf nutrients
**Price:** € 29.02
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your garden game with nature’s most potent plant elixir!

## Quick Answers

- **What is this?** Seaweed and Kelp Fertilizer for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 Liters by greenleaf nutrients
- **How much does it cost?** € 29.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/638636546-seaweed-and-kelp-fertilizer-for-plants-organic-sea-k-concentrated)

## Best For

- greenleaf nutrients enthusiasts

## Why This Product

- Trusted greenleaf nutrients brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Application:** Perfect for hydroponics, soil, coco, peat, and drip irrigation systems.
- • **Root & Yield Amplifier:** Packed with bioactive enzymes and hormones to supercharge growth and harvests.
- • **Ultimate Organic Boost:** Dual OMRI & EU ECOCERT certified for trusted, sustainable growth.
- • **Stress-Resistant Plants:** Enhances plant resilience and promotes vibrant fruit and flower development.
- • **Mega Concentration Power:** 200g powder makes up to 700 liters—maximize your garden’s potential.

## Overview

Organic Sea-K is a premium, concentrated seaweed and kelp extract powder, certified for organic farming in the USA and Europe. Extracted via advanced low-temperature enzymatic hydrolysis, it delivers over 70 essential vitamins, minerals, and enzymes in a 100% water-soluble form. With high potassium content and bioactive growth stimulants, it supports stress resistance, root vitality, and enhanced yields across diverse growing media, making it a must-have for professional and passionate gardeners alike.

## Description

Sponsored Ad – Seaweed and Kelp Fertilizer for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 Liters

## Features

- 【Kelp seaweed extract】has long been known as one of the most effective, natural and potent ways to improve your plants. Improve resistance to stress; promote fruit and flower expansion, coloring and potency, and increase Brix! Rich concentrations of more than 70 vitamins, minerals, and enzymes helps benefit your plants and revitalize your soil media.
- 【OMRI and EU ECOCERT Organic】Dual Organic Agriculture certification (National Organic Program) for both USA and Europe for Organic farming and crop production.
- Sea-K Kelp is extracted from species Ascophyllum nodosum, Sargassum, Laginariausing the most advanced, 【low temperature enzymatic hydrolysis processes】, maintaining a light brown color and highest purity of beneficial bioactive ingredients.
- 【100% Water Soluble Powder】 Suitable for any growing system or media, including greenhouse & outdoor drip irrigation, hydroponics, coco, peat, soil, rockwool, etc. 200g ultra concentrated bag size makes up to 400 gallons!
- 【High Potassium(K)】 For vibrancy, with over 18% soluble K! Also high levels of soluble Magnesium (Mg), Calcium (Ca), Iron (Fe), etc.
- 【Promotes strong growth, root viability, germination and yields.】 Rich in polysaccharides, cytokins, auxins, purines, IAA and more! Don’t miss this essential nutrient for your plants!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Greenleaf Nutrients |
| Part number | Sea-K-200g pouch |
| Item Weight | 200 g |
| Product Dimensions | 22.86 x 15.24 x 1.27 cm; 200 g |
| Item model number | 742776993208 |
| Size | 200g |
| Item Package Quantity | 1 |
| Coverage | houseplants and indoor gardens, vegetable gardens, lawns and turf grasses, etc. |
| Specific uses | Plant Growth |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Greenleaf Nutrients
- **Item weight:** 200 Grams
- **Item form:** Powder
- **Specific uses for product:** Plant Growth
- **Manufacturer:** Greenleaf Nutrients

## Images

![Seaweed and Kelp Fertilizer for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 Liters - Image 1](https://m.media-amazon.com/images/I/91woCrr3R0L.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.gr/products/638636546-seaweed-and-kelp-fertilizer-for-plants-organic-sea-k-concentrated](https://www.desertcart.gr/products/638636546-seaweed-and-kelp-fertilizer-for-plants-organic-sea-k-concentrated)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-25*