How much will this make?

Mixed at 3ml per gallon it will make 320 gallons. Mixed at 5ml per gallon it will make 192 gallons.

Is this carbonate based?

Near neutral pH, ferric ions form insoluble solids and are thus not bioavailable. EDTA (and other chelating agents) address this problem, by forming soluble complexes that resist formation of hydroxides. EDTA increases the bioavailability and plant uptake of the metals in the soil

How long can this be kept and or stored

Product warranty on nutrients and supplements is 1 year past the date of manufacture. Stable shelf life can run past this substantially if unopened, but this time greatly depends on storage conditions. Once a product is opened, it should be used within 6 months, or ideally- the time it takes to cycle a production garden which is typically 12 weeks on average. Opened products may last longer than this, but it should not be expected to be the case.

Can this be used for Tomatoes, Blossom end rot?

Yes, this works well with Tomatoes.

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Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon

Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon

Product ID: 358864916

Details

Brand
Botanicare
Item form
Liquid
Item weight
10.3 Pounds
Liquid volume
3.78 Liters
Specific uses for product
Plant Growth

🌿Calcium, Magnesium & Iron boost

💧Versatile liquid for soil & foliar use

🧪2-0-0 NPK formula

$290.95

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Description

🌱 Elevate your garden game with every drop!

BALANCED NUTRITION - 2-0-0 NPK formula complements your existing feeding program without overloading plants.
TRUSTED BY GROWERS - 4.8-star rating from 2,600+ users proves it’s the go-to for healthier, happier plants.
FLEXIBLE APPLICATION - Use as a foliar spray or mix with every watering for consistent nutrient delivery.
TRIPLE MINERAL POWER - Fortified calcium, magnesium, and iron to fix common plant deficiencies and supercharge growth.
UNIVERSAL COMPATIBILITY - Perfect for soil, coco coir, containers, and hydro gardens—grow anywhere with confidence.

Botanicare Cal-Mag Plus is a premium liquid supplement delivering essential calcium, magnesium, and iron with a balanced 2-0-0 NPK formula. Designed to correct common nutrient deficiencies, it supports robust plant growth across soil, coco, and hydroponic systems. Easy to apply as a foliar spray or mixed in watering routines, it’s trusted by thousands of growers for healthier, more productive plants.

Specifications

ASIN	B000J2CUPW
Brand	Botanicare
Brand Name	Botanicare
Coverage	Full
Customer Reviews	4.8 out of 5 stars 2,611 Reviews
Global Trade Identification Number	00757900241285
Included Components	Bottle with liquid supplement
Item Form	Liquid
Item Type Name	Calcium Magnesium & Iron Plant Supplement
Item Weight	4.67 kg
Item form	Liquid
Item weight	4.67 kg
Liquid Volume	3.78 Liters
Liquid volume	3.78 Liters
Manufacturer	Hawthorne Hydroponics, LLC
Mixing Ratio	Según las instrucciones del fabricante
Model Number	BCCMGAL
Number of Items	1
Part Number	732115
Specific Uses For Product	Plant Growth
Specific uses for product	Plant Growth
Target Species	plants
UPC	714639490223 791090262002 783942912234 757900241285 765018456736 309277145590 702872551191
Unit Count	128 Milliliters

Reviews

D**H

Fertilizing made easy!

Easy to use, very effective.

10.06.2026

E**T

Happy Peppers

I've been using Cal-Mag Plus for about 5 years now for my peppers. The peppers love the extra nutrients that are hard to find in other fertilizers. Very effective for pepper production and helps prevent blossom end rot. Pair this with your favorite fertilizer and you'll have happy plants.

6.04.2026

J**D

Good stuff.

Good stuff just like all of their other products, especially the root inoculant. Just wish I hadn’t ordered so much 😂

4.06.2026

R**B

Works great

Wonderful product cured multiple situation in my garden I didn’t even know lack of calcium and magnesium was the cause

1.06.2026

B**N

Calcium

Happy with the product. My plants get micros they need and are happy.

17.12.2024

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$290.95

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

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TrustScore 4.5 | 7,300+ reviews

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