---
product_id: 402667249
title: "Cal-Mag Extreme Liquid 1 Quart Fertilizer with Calcium, Magnesium, Iron and Sulfur Supplement, Corrects Secondary Nutrient & Trace Element Deficiencies, N-P-K of 2-0-0"
brand: "gs plant foods"
price: "KD 13.20"
currency: KWD
in_stock: true
reviews_count: 8
category: "Gs Plant Foods"
url: https://www.desertcart.com.kw/products/402667249-cal-mag-extreme-liquid-1-quart-fertilizer-with-calcium-magnesium
store_origin: KW
region: Kuwait
---

# Instant plant absorption with natural chelates 8 essential secondary & trace nutrients 2-0-0 N-P-K formula Cal-Mag Extreme Liquid 1 Quart Fertilizer with Calcium, Magnesium, Iron and Sulfur Supplement, Corrects Secondary Nutrient & Trace Element Deficiencies, N-P-K of 2-0-0

**Brand:** gs plant foods
**Price:** KD 13.20
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your garden game with the ultimate nutrient boost!

## Quick Answers

- **What is this?** Cal-Mag Extreme Liquid 1 Quart Fertilizer with Calcium, Magnesium, Iron and Sulfur Supplement, Corrects Secondary Nutrient & Trace Element Deficiencies, N-P-K of 2-0-0 by gs plant foods
- **How much does it cost?** KD 13.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/402667249-cal-mag-extreme-liquid-1-quart-fertilizer-with-calcium-magnesium)

## Best For

- gs plant foods enthusiasts

## Why This Product

- Trusted gs plant foods brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fast-Acting Formula:** Natural chelates ensure rapid nutrient uptake, so your plants show visible improvement quickly.
- • **Boost Plant Vitality:** Calcium & Magnesium combo prevents blossom rot and strengthens cell walls for healthier growth.
- • **Trusted by Gardeners:** Top-rated with 4.6 stars and a loyal following among indoor and outdoor plant enthusiasts.
- • **Versatile Application:** Perfect for soil, container, coco, and hydro setups—mixes easily with water for irrigation or foliar spray.
- • **Complete Micro-Nutrient Support:** Includes Iron, Sulfur, Manganese, Zinc, Boron & Molybdenum to fix hidden deficiencies conventional fertilizers miss.

## Overview

GS Plant Foods Cal-Mag Extreme is a premium liquid supplement designed to correct secondary nutrient and trace element deficiencies with a precise 2-0-0 N-P-K ratio. Packed with calcium, magnesium, iron, sulfur, and six other essential micronutrients in chelated form, it ensures rapid absorption and supports robust plant health across all growth stages. Ideal for all growing mediums, this easy-to-use formula enhances nutrient uptake, prevents common issues like blossom rot, and is highly rated by gardeners seeking to maximize yield and vitality.

## Description

desertcart.com: GS Plant Foods Cal-Mag Extreme Liquid 1 Quart Fertilizer with Calcium, Magnesium, Iron and Sulfur Supplement, Corrects Secondary Nutrient & Trace Element Deficiencies, N-P-K of 2-0-0 : Patio, Lawn & Garden

Review: Not a complete fertilizer per se, but great as additive for many plants. - I grow a almost all of our veggies and herbs indoors year around and use a couple of different fertilizers depending on the needs of the plants I grow. Cal-Mag Extreme is not a fertilizer per se, but helps to supply nutrients many plants require that most fertilizers do not supply. This fertilizer supplement is particularly useful for tomatoes, bell peppers and other that require additional calcium and magnesium to prevent blossom rot and also a number of other nutrients often not supplied in many fertilizers. This additive helps plants to absorb more of the nutrients already in the soil and also nutrients added with other fertilizers. For my indoor plants, I use 4cc's per gallon of water in addition to my regular fertilizer, and I seldom see blossom rot in my tomatoes. I also use this supplement for some of my other plants to help with absorption of nutrients in the soil. I bought the gallon size when it was available which will last for a very long time. I would definitely recommend this supplement for any plants that need a boost in calcium, magnesium and other nutrients not supplied by conventional fertilizers. I hope this review was helpful for you.
Review: Is of use and it works ! - This is a marvelous product. !!! my plants perked right up and have remained noticeably healthier.. I highly recommend this product … Thank You so much for it… also easy to use

## Features

- We all know plants need adequate primary nutrients (nitrogen, phosphorous and potassium) however, they also need the right amount of both secondary nutrients and trace elements or micro-nutrients. Even with the right amount of N-P-K, a small deficiency in either secondary or micro-nutrients can severely limit plant health, growth and yield.
- GS Plant Foods’ Cal-Mag Extreme solves the problem. It contains Calcium, Magnesium, Iron, Sulfur, Manganese, Zinc, Boron & Molybdenum all in an immediately plant available form with natural chelates for fast plant absorption.
- Beneficial to plants throughout all growth cycles and easily mixes with water to use during irrigation or as a foliar spray.
- Easy-To Use just mix with water. Formulated for use in all soil, container, coco and hydro growing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09M7NPNJ6 |
| Best Sellers Rank | #22,931 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #799 in Garden Fertilizers |
| Brand Name | GS Plant Foods |
| Coverage | Medium |
| Customer Reviews | 4.6 4.6 out of 5 stars (387) |
| Item Form | Liquid |
| Liquid Volume | 0.95 Liters |
| Mixing Ratio | 1 teaspoon per gallon of water |
| Target Species | plants |
| UPC | 853656005611 |
| Unit Count | 32 Fluid Ounces |

## Product Details

- **Brand:** GS Plant Foods
- **Item Form:** Liquid
- **Liquid Volume:** 0.95 Liters
- **UPC:** 853656005611
- **Unit Count:** 32 Fluid Ounces

## Images

![Cal-Mag Extreme Liquid 1 Quart Fertilizer with Calcium, Magnesium, Iron and Sulfur Supplement, Corrects Secondary Nutrient & Trace Element Deficiencies, N-P-K of 2-0-0 - Image 1](https://m.media-amazon.com/images/I/61iZ8ifN5IL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not a complete fertilizer per se, but great as additive for many plants.
*by J***. on November 1, 2025*

I grow a almost all of our veggies and herbs indoors year around and use a couple of different fertilizers depending on the needs of the plants I grow. Cal-Mag Extreme is not a fertilizer per se, but helps to supply nutrients many plants require that most fertilizers do not supply. This fertilizer supplement is particularly useful for tomatoes, bell peppers and other that require additional calcium and magnesium to prevent blossom rot and also a number of other nutrients often not supplied in many fertilizers. This additive helps plants to absorb more of the nutrients already in the soil and also nutrients added with other fertilizers. For my indoor plants, I use 4cc's per gallon of water in addition to my regular fertilizer, and I seldom see blossom rot in my tomatoes. I also use this supplement for some of my other plants to help with absorption of nutrients in the soil. I bought the gallon size when it was available which will last for a very long time. I would definitely recommend this supplement for any plants that need a boost in calcium, magnesium and other nutrients not supplied by conventional fertilizers. I hope this review was helpful for you.

### ⭐⭐⭐⭐⭐ Is of use and it works !
*by R***E on December 12, 2025*

This is a marvelous product. !!! my plants perked right up and have remained noticeably healthier.. I highly recommend this product … Thank You so much for it… also easy to use

### ⭐⭐⭐⭐⭐ Game Changer for Orchids
*by M***Y on October 27, 2025*

My orchids love this stuff. Noticed a huge difference in root growth after I started using it. I water lightly with it twice weekly and have had great results. I grow in lava rock so this has been a game changer. Thank you!

## Frequently Bought Together

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-13*