---
product_id: 745600749
title: "Seaweed and Kelp Hydroponic Nutrient for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 liters"
brand: "greenleaf nutrients"
price: "583 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/745600749-seaweed-and-kelp-hydroponic-nutrient-for-plants-organic-sea-k
store_origin: PL
region: Poland
---

# Dual organic certification (OMRI & EU ECOCERT) 100% water soluble powder Low-temp enzymatic extraction Seaweed and Kelp Hydroponic Nutrient for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 liters

**Brand:** greenleaf nutrients
**Price:** 583 zł
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your grow game with nature’s purest plant fuel!

## Quick Answers

- **What is this?** Seaweed and Kelp Hydroponic Nutrient for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 liters by greenleaf nutrients
- **How much does it cost?** 583 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/745600749-seaweed-and-kelp-hydroponic-nutrient-for-plants-organic-sea-k)

## 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

- • **Boosts Plant Vitality:** High potassium & essential minerals promote vibrant growth, stress resistance & yield
- • **Versatile Compatibility:** Perfect for hydroponics, soil, coco, peat, rockwool & drip irrigation
- • **Pure & Potent Bioactives:** Advanced low-temp enzymatic hydrolysis locks in 70+ vitamins & minerals
- • **Ultra-Concentrated Power:** 200g makes 700 liters—maximize your grow with minimal effort
- • **Certified Organic Assurance:** OMRI & EU ECOCERT certified for trusted, sustainable crop nutrition

## Overview

Sea-K is a premium, 100% water-soluble organic seaweed and kelp powder nutrient, extracted via advanced low-temperature enzymatic hydrolysis to preserve over 70 bioactive compounds. Certified by OMRI and EU ECOCERT, this ultra-concentrated formula (200g) yields up to 700 liters of nutrient solution, compatible with all growing media including hydroponics and soil. Rich in potassium, magnesium, calcium, and iron, it enhances plant stress resistance, root vitality, and crop yield—ideal for professional growers seeking sustainable, high-performance nutrition.

## Description

Seaweed and Kelp Hydroponic Nutrient for Plants - Organic Sea-K - Concentrated Extract Powder Nutrient Makes 700 liters

## Features

- 【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!

## Product Details

- **Brand:** Greenleaf Nutrients
- **Item weight:** 200 Grams
- **Item form:** Powder
- **Manufacturer:** Greenleaf Nutrients
- **Number of Items:** 1

## Images

![Seaweed and Kelp Hydroponic Nutrient 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** options.

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**Shop now:** [https://www.desertcart.pl/products/745600749-seaweed-and-kelp-hydroponic-nutrient-for-plants-organic-sea-k](https://www.desertcart.pl/products/745600749-seaweed-and-kelp-hydroponic-nutrient-for-plants-organic-sea-k)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-09*