Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, Gallon (128 oz)

Bloom City Professional Grade Ultra Pure Cal-Mag Growing Fertilizer, 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

4.7/5

Product ID: 764472716

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Details

Brand
Bloom City
Item Weight
128 Ounces
Liquid Volume
1 Gallons
UPC
841401125158
Unit Count
3785.41 ミリリットル

💧Ultra pure formula for optimal nutrient absorption

⚖️Balanced Cal-Mag ratio for professional-grade plant health

🛢️Generous 128 oz gallon size for extended use

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Description

🌿 Elevate your garden game with pure, professional-grade Cal-Mag power!

PURE POWER BOOST - Ultra pure Cal-Mag formula ensures your plants get the cleanest, most effective nutrients for vigorous growth.
LONG LASTING SUPPLY - A full gallon (128 oz) means fewer refills and more uninterrupted growing seasons—stay ahead of the curve.
PRECISION NUTRITION - Expertly balanced calcium and magnesium levels support strong cell walls and lush foliage, perfect for serious growers.
ECO CONSCIOUS PACKAGING - Compact, easy-to-store design minimizes waste while maximizing your garden’s potential.
PROFESSIONAL GRADE QUALITY - Trusted by horticulture pros, this fertilizer delivers consistent, reliable results every time.

Bloom City’s Professional Grade Ultra Pure Cal-Mag Fertilizer offers a 128 oz gallon of precisely balanced calcium and magnesium nutrients, designed to promote robust plant health and growth. Ideal for dedicated gardeners seeking premium quality and long-lasting supply, this formula supports strong cell structure and vibrant foliage without compromise.

Specifications

Part number	BCALMAG1G
Item Weight	3.62 Kilograms
Package Dimensions	30.2 x 15.29 x 15.01 cm; 3.63 kg
Is Discontinued By Manufacturer	No
Color	y170
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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