---
product_id: 13563827
title: "CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients"
brand: "blue planet nutrients"
price: "580.80 DT"
currency: TND
in_stock: true
reviews_count: 8
category: "Blue Planet Nutrients"
url: https://www.desertcart.tn/products/13563827-calmag-plus-iron-liquid-plant-supplement-128-fl-oz-gallon
store_origin: TN
region: Tunisia
---

# Calcium, Magnesium & Iron boost plant vitality Versatile for hydroponic, soil & aeroponic use Concentrated formula makes up to 1,260 gallons CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients

**Brand:** blue planet nutrients
**Price:** 580.80 DT
**Availability:** ✅ In Stock

## Summary

> 🌱 Feed your plants like a pro—grow vibrant, healthy, and unstoppable!

## Quick Answers

- **What is this?** CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients by blue planet nutrients
- **How much does it cost?** 580.80 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/13563827-calmag-plus-iron-liquid-plant-supplement-128-fl-oz-gallon)

## Best For

- blue planet nutrients enthusiasts

## Why This Product

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

## Key Features

- • **Triple Mineral Power:** Calcium, magnesium, and iron fuel photosynthesis and nutrient transport
- • **Effortless Application:** Dilute and feed or foliar spray—simple, fast, and effective
- • **Trusted Pro-Grade Formula:** From Blue Planet Nutrients, a leader in premium garden supplements since 2010
- • **Ultimate Deficiency Defense:** Prevents & corrects blossom end rot and leaf curl for flawless growth
- • **Universal Garden Compatibility:** Perfect for all plants and growing mediums—soil, hydroponic, aeroponic, and more

## Overview

Blue Planet Nutrients CalMag Plus Iron is a highly concentrated liquid supplement delivering essential calcium, magnesium, and iron to all plant types. Designed to prevent common nutrient deficiencies like blossom end rot and leaf curl, it supports photosynthesis, nutrient uptake, and robust growth. Suitable for hydroponic, soil, and aeroponic gardens, this gallon concentrate makes up to 1,260 gallons of ready-to-use feed, ensuring professional-grade plant health and bountiful harvests.

## Description

Product description CalMag with Iron Liquid Supplement For Plants - From Blue Planet Nutrients What does it do? Increases Cell Division & Plant Tissue Development Increases Flower & Fruit Sets on Your Prized Plants Increases Water, Nutrient, and Carbon Dioxide Uptake Allows Plants to Mobilize Essential Elements Needed for Healthy Growth Increases Growth Rates & Crop Maturity for a Bountiful Harvest For All Plants & Gardens Versatile, Safe, Highly Concentrated Formula Blue Planet Nutrients Liquid CalMag with Iron Supplement is a safe formula for use in any type of garden for all varieties of plants. Our concentrated formula will help prevent and correct common issues seen in a variety of plants including vegetables, fruits, flowers, trees, and even medicinal. It can also be added to a regular feed regimen to increase plant vitality & crop quality & quantity. Prevents & Corrects Blossom End Rot & Upward Leaf Curl Prevent & correct blossom end rot, which is commonly found in crops lacking all of the essential nutrients needed for healthy growth. Blossom end rot is when the blossom end of your vegetables shrink and decay before the fruit/vegetable ripens. Another common issue seen in plants is upward leaf curl, which is apparent when the edges of leaves are misshapen & curl up/into themselves. Use BPN Liquid CalMag with Iron to prevent & fix these issues so your plants will reach their fullest potential.

Review: 👍🏼👍🏼👍🏼 - Great supplement for Hoyas.
Review: Nice addative for plant health. - Big difference in plant health. Works well for cannabis.

## Features

- CORRECT & PREVENT DEFICIENCIES: Feed CalMag to your plants as needed to prevent and correct common deficiencies such as blossom end rot and upward leaf curl.
- CALCIUM, MAGNESIUM, IRON SUPPLEMENT: CalMag provides plants with calcium, magnesium, and iron which are key elements in photosynthesis, absorption & transport of nutrients within the plant, and are vital to the healthy development of all varieties of plants.
- VERSATILE FORMULA: Can be fed to all varieties of plants growing in almost any type of garden such as hydroponic, soil, aeroponic, and all soil-less media! Blue Planet Nutrients CalMag supplement can be used along with other garden fertilizers and supplements.
- EASY TO USE: Simply dilute a small amount per gallon of water and water your plants! CalMag can also be used as a foliar spray and as a soak for coco coir prior to use as a hydroponic growing medium.
- BLUE PLANET NUTRIENTS: Trusted brand from Houston, TX providing high quality, professional grade garden fertilizers and supplements since 2010.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00HEWBDXK |
| Best Sellers Rank | #122,512 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,303 in Garden Fertilizers |
| Brand | Blue Planet Nutrients |
| Brand Name | Blue Planet Nutrients |
| Coverage | Medium |
| Customer Reviews | 4.7 out of 5 stars 1,779 Reviews |
| Item Form | Liquid |
| Item Weight | 128 Ounces |
| Liquid Volume | 1 Gallons |
| Manufacturer | Blue Planet Nutrients |
| Mixing Ratio | Seedlings/Small Plants: 1:32000, Medium-Large/Mature Plants: 1:16000 |
| Model Number | 4336441778 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 4336441778 |
| Specific Uses For Product | Fertilizer Supplement for All Plants and Gardens |
| Target Species | all plants |
| UPC | 609408402760 |
| Unit Count | 128 Fluid Ounces |

## Product Details

- **Brand:** Blue Planet Nutrients
- **Item Weight:** 128 Ounces
- **Item Form:** Liquid
- **Liquid Volume:** 1 Gallons
- **Specific Uses For Product:** Fertilizer Supplement for All Plants and Gardens

## Images

![CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients - Image 1](https://m.media-amazon.com/images/I/61fWCNpk6dL.jpg)
![CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients - Image 2](https://m.media-amazon.com/images/I/61QQEL2nmRL.jpg)
![CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients - Image 3](https://m.media-amazon.com/images/I/8119o+Cn7PL.jpg)
![CalMag Plus Iron Liquid Plant Supplement (128 fl oz) Gallon | for All Plants & Gardens | Concentrated Calcium Magnesium Iron | Makes Up to 1,260 Gallons of Ready to Feed | Blue Planet Nutrients - Image 4](https://m.media-amazon.com/images/I/71ly9jD1kdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 👍🏼👍🏼👍🏼
*by S***H on May 26, 2026*

Great supplement for Hoyas.

### ⭐⭐⭐⭐⭐ Nice addative for plant health.
*by P***E on February 16, 2026*

Big difference in plant health. Works well for cannabis.

### ⭐⭐⭐⭐⭐ This stuff works really well
*by C***K on May 8, 2024*

Works extremely well at correcting or preventing calcium magnesium or iron deficiencies I use it daily and have been using it for years same company same product and have not been disappointed not even once this stuff is amazing not only that but it corrects the problem fast and is fairly cheap!

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-22*