Bloom CityCal Mag Plant Supplement with Micronutrients - Concentrated Calcium Fertilizer for Garden & Hydroponics - Calmag for Plants, Gallon (128 oz)

Bloom CityCal Mag Plant Supplement with Micronutrients - Concentrated Calcium Fertilizer for Garden & Hydroponics - Calmag for Plants, Gallon (128 oz)

Q: Is there nitrogen in this? It would be helpful for the seller to post the bottle back side label.

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?

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?

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?

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

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Product ID: 519714673

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Details

Brand
Bloom City
Item weight
128 Ounces
Item form
Liquid
Coverage
Full
Liquid volume
1 Gallons

🌿Bioactivated fulvic acid chelation

🧪Highest micronutrient density

♻️100% organic, EDTA-free formula

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Description

🌱 Elevate your garden game with the purest Cal-Mag boost—grow smarter, grow greener!

DEFICIENCY DEFENSE - Prevents common calcium and magnesium deficiencies at every growth stage.
UNIVERSAL COMPATIBILITY - Seamlessly integrates with any nutrient system—soil, hydro, or foliar spray.
MICRONUTRIENT POWERHOUSE - Packed with 7+ essential trace minerals for unmatched plant vitality.
ECO CONSCIOUS CRAFTSMANSHIP - Organic chelates, no harmful EDTA—better for your plants and the planet.
BIOACTIVATED NUTRIENT UPTAKE - Fulvic acid chelates boost absorption for faster, healthier growth.

Bloom City Cal Mag is a premium, gallon-sized plant supplement delivering calcium, magnesium, and a superior spectrum of micronutrients organically chelated with fulvic acid for optimal uptake. Designed for all growth mediums and nutrient systems, it prevents common deficiencies and promotes robust stalk and leaf health without harmful chemicals like EDTA. Crafted in the USA for conscientious growers seeking maximum plant vitality and eco-friendly solutions.

Specifications

Manufacturer	Bloom City
Part number	BCALMAG1G
Item Weight	3.62 kg
Package Dimensions	30.2 x 15.29 x 15.01 cm; 3.63 kg
Manufacturer reference	BCALMAG1G
Size	Gallon (128 oz)
Coverage	Full
Specific uses	Plant Growth
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Is there nitrogen in this? It would be helpful for the seller to post the bottle back side label.

Site says it is compatible with all growth mediums, but bottle says for hydroponic use ONLY. Which is it?

Can this be mixed with epsom salt for additional magnesium as a foliar spray or added as a root drench?

What would be the salt in ppm per dose added to ro or distilled water?

Common Questions

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