---
product_id: 716721668
title: "Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, Quart (32 oz)"
brand: "bloom city"
price: "VT23892"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/716721668-professional-grade-ultra-pure-cal-mag-growing-fertilizer-quart-32
store_origin: VU
region: Vanuatu
---

# Supports strong stems & vibrant leaves Ultra pure liquid formula Precise dosing: 2-5ml per gallon Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, Quart (32 oz)

**Brand:** bloom city
**Price:** VT23892
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your garden game with pure, powerful nutrition!

## Quick Answers

- **What is this?** Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, Quart (32 oz) by bloom city
- **How much does it cost?** VT23892 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/716721668-professional-grade-ultra-pure-cal-mag-growing-fertilizer-quart-32)

## Best For

- bloom city enthusiasts

## Why This Product

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

## Key Features

- • **Beginner Friendly:** Simple integration into any plant care routine
- • **Strengthen & Thrive:** Calcium and magnesium promote robust stems and lush foliage
- • **Effortless Nutrient Boost:** Just 2-5ml per gallon for optimal plant health
- • **Professional Grade Purity:** Ultra pure formula ensures no unwanted residues
- • **Versatile for Every Grower:** Perfect for indoor, outdoor, and hydroponic setups

## Overview

Bloom City’s Professional Grade Ultra Pure Cal-Mag Fertilizer delivers essential calcium and magnesium in a highly concentrated liquid form, designed for easy dosing and versatile use across indoor, outdoor, and hydroponic plants. Ideal for gardeners of all skill levels seeking stronger stems, vibrant leaves, and consistent growth.

## Description

Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, Quart (32 oz)

## Features

- Easy Mixing Directions: Simply add 2-5ml per gallon of feedwater, then water your plants as you normally would. A straightforward addition to your plant care routine, suited for all types of plants.
- Nutrient-Focused Formula: This Cal Mag fertilizer contains calcium and magnesium that plants use for maintaining strong stems and vibrant leaves. Suitable for both indoor and outdoor use.
- Adaptable for Different Growers: Whether tending to houseplants, outdoor gardens, or hydroponic setups, this CalMag for plants fits into a variety of growing conditions and plant care styles.
- Supports Plant Nutrition: Many gardeners turn to Cal Mag for plants to help address nutrient needs, aiming to support consistent growth and leaf color, linked to calcium and magnesium intake.
- Suitable for Growers of Any Skill Level: From beginners to experienced gardeners, this Cal Mag fertilizer is easy to integrate into any plant care routine, providing essential nutrients in an accessible format.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B073ZNQWCM |
| Best Sellers Rank | #4,972 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #188 in Garden Fertilizers |
| Brand | Bloom City |
| Date First Available | July 17, 2017 |
| Item Form | Liquid |
| Item Weight | 2 pounds |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Bloom City |
| Number of Items | 1 |
| Package Dimensions | 8.82 x 3.27 x 3.11 inches |
| Specific Uses For Product | Organic |
| UPC | 841401125141 |
| Unit Count | 32 Fluid Ounces |

## Product Details

- **Brand:** Bloom City
- **Item weight:** 32 Ounces
- **Item form:** Liquid
- **Liquid volume:** 32 Fluid Ounces
- **Specific uses for product:** Organic

## Images

![Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, Quart (32 oz) - Image 1](https://m.media-amazon.com/images/I/71w95RGYnrL.jpg)

## Questions & Answers

**Q: Is there nitrogen in this?  It would be helpful for the seller to post the bottle back side label.**
A: Hey there, good idea on posting the labels, adding that to my to-do list!  To answer your question, yes there is Nitrogen.  Here is the guaranteed analysis of nutrient content on our Cal-Mag.  Total Nitrogen 2%, 2% Nitrate Nitrogen, Calcium 2%, Magnesium 0.6%, Boron .002%, Copper .003%, iron .004%, Manganese .004%, Zinc .004%.  Derived from: Calcium Nitrate, Magnesium Nitrate, Boric Acid, Copper Sulfate, Ferric Sulfate, Manganese Sulfate, Zinc Sulfate.

Hope that helps!

James - Bloom City Crew

**Q: Site says it is compatible with all  growth mediums, but bottle says for hydroponic use ONLY. Which is it?**
A: That terminology on the bottle is unfortunately a labeling requirement placed on us by regulators.  It is compatible with all growing mediums, including soil, cocoa coir, peat, hydroponic systems, etc.  

Thanks,
James - Bloom City Crew

**Q: Can this be mixed with epsom salt for additional magnesium as a foliar spray or added as a root drench?**
A: Hi, Great question.  It can be added to epsom salt in a water solution, however we suggest you try this Cal-Mag first on the plants - its probably more than enough magnesium.  We use highly bio-available mineral forms and add organic acids to the product to increase uptake.  Its also great as both a foliar spray and a root drench!  Let us know how the plants grow!

**Q: What would be the salt in ppm per dose added to ro or distilled water?**
A: Hi, thanks for the question!  The PPM added would be about 120 for the low dose of 2ml per gallon, and 240 for the high dose of 4ml per gallon.  Let us know if you have any other questions!

James - Bloom City Crew

## Frequently Bought Together

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-04*