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Cal-Mag Plus 2-0-0 Concentrate – Heavy-Metal-Free Ca-Mg-Fe

Regular Price
$ 33.99
Sale Price
$ 33.99
Regular Price
$ 33.99
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Unit Price
per 

Weight: 2.5 Pounds (Makes 1 Gallon)

Cal-Mag Plus 2-0-0 Concentrate is a chelated Ca-Mg-Fe powder that corrects deficiencies and stops blossom-end rot in tomatoes, peppers, leafy greens, coco and hydro systems — 100 % water-soluble, heavy-metal-free, and kinder to your wallet and the planet.

Balanced Ca-Mg-Fe

2-0-0 analysis with 3.2 % Ca & 1.2 % Mg plus EDTA-chelated iron keeps fast-growing crops healthy.

Fully Water-Soluble

Dissolves crystal-clear in seconds—no clogged drip lines or sprayers.

50-70 % Cost & Carbon Savings

Ship nutrients, not water: powder format slashes freight costs and CO₂ emissions.

FEATURES
  • 2 % N, 3.2 % Ca, 1.2 % Mg, 0.1 % Fe-EDTA per dose.
  • CDFA-registered & third-party heavy-metal tested—safe for edibles.
  • Optimized for coco coir, RO water and high-performance hydro.
  • Acts as a nutrient catalyst, boosting uptake of base fertilizers.
  • Powder format cuts packaging waste and freight carbon footprint vs. liquids.
  • Family-owned & made in California since 1989.
Derived From

Calcium NitrateMagnesium NitrateIron EDTA

Application Rates & Mixing

Step 1 – Create Concentrate

Package Size Water Yield
2.5 lb 1 gal 1 gal stock
5 lb 2 gal 2 gal stock
10 lb 4 gal 4 gal stock
25 lb 10 gal 10 gal stock

Step 2 – Dilute for Use

Method Dilution Guidelines
Soil / Containers 5–10 ml / gal Every watering or weekly
Hydroponics 5–10 ml / gal Maintain EC, refresh weekly
Foliar Spray 5 ml / gal Spray at dawn or dusk
Coco Buffering 10 ml / gal Pre-soak media

Note: Mix the entire package at once for a uniform stock solution.

Frequently Asked Questions

Why choose powder over liquid Cal-Mag?
Powder ships without water, trimming cost, storage, and CO₂ footprint while letting you fine-tune strength.
Can I use it as foliar spray?
Yes — 5 ml stock per gallon; mist leaves at low-light hours for rapid uptake.
Is it suitable for organic growing?
It uses synthetic nitrate sources (not OMRI-listed) but is heavy-metal-free and often paired with organic programs.

Customer Reviews

Based on 17 reviews
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BRADLEY JOHNSTON
Love cal mag dry concentrate

Dry concentrate that you rehydrate at home is the way to go for lower cost yet highly effective cal-mag. I highly recommend.

J
Jason Davis
Best CalMag

I have used allot of different calmags and this is the best and I love the pricing. Great company and fast shipping.

D
David Kwon
Great service and quality

Everything came as ordered and will be prepared to grow some of my own food.

R
Robert Kluttz
Open and leaking

It came quickly as usual, but this time it was open, had absorbed moisture, and was a leaking mess. The shipping container is an envelope, and the envelope was in bad shape. For as much as it costs, you’d think it would be packaged better. This will probably be my last order.

l
latifa wiley
Poor customer service

No getting back to customers when their promised order can't be filled. When placing my order over the phone with the same receptionist I told her its emergency to recieve in the 2 day ship. Waiting and waiting for order 2x now. Called back, receptionist sounds like she could care less about the business in which she should be representing, that's unfortunate. Suggested that the company send out an email when they are not able to fullfill orders when promised. I was told they would take it under consideration, Really! First order didn't arrive, same receptionist placed a replacement order, it never arrived either. So called back for the 3rd time, was told then one of the items was just that day being made. Really, so far I am not one but impressed, still waiting.