CalMag & Iron

Regular price: $16.97
Sale price: $16.97

Making Growing Simple, Exciting, and Easier to Succeed At

CalMag & Iron contains an exact balance of calcium, magnesium and iron specifically formulated to address any deficiencies that could be encountered

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Product Information

About CalMag & Iron

RICH SOURCE OF CALCIUM MAGNESIUM & CHELATED IRON: Many varieties of flowering plants require higher levels of these micronutrients. Our well-balanced formula is designed to specifically address any plant deficiencies that may be present.

CORRECTS COMMON PLANT DEFICIENCIES: Sometimes, an unhealthy plant may be suffering from a nutrient deficiency or even too much of one nutrient. Our Cal/Mag & Iron supplement effectively corrects and remedies these micronutrient plant deficiencies.

INCREASE NUTRIENT UPTAKE AND ABSORPTION: This formula efficiently increases nutrient uptake and absorption by addressing any plant deficiencies in the first place, thus successfully supporting the vegetative and flowering stage of your plants.

SUITABLE FOR HYDROPONICS, SOIL, AND CONTAINER GARDENS: Nutrient systems and supplements are commonly used as hydroponic supplies and are a good solution for soil and container gardens, ensuring strong and healthy plants and yields. OPTIMAL FOR COCO COIR MEDIUM AND REVERSE OSMOSIS WATER: Our Supplemental Cal/Mag & Iron by Humboldts Secret is highly recommended for plants growing in coco substrate or reverse osmosis water, as the absorption process becomes magnified.

CalMag & Iron Feed Chart

Mixing Procedure

1) Fill your reservoir with water. It may be filtered or tap water. If you use filtered water you may need to add some CalMag & Iron.

2) Add HUMBOLDTS SECRET NUTRIENTS listed on the feed chart (Shake each bottle a little bit)

3) After you add your nutrients, adjust the PH so that your end mixture in your reservoir is between 5.5 and 6.5 (If needed.)

4) Can be used in Soil, Coco, Deep Water Culture (DWC) and Aeroponics. Typically less nutrients are used in DWC. If you grow in Hydroponics it is recommended that you use Golden Tree at a lower dose and use Plant Enzymes. We suggest you play around with the amounts of each nutrient and find out what works best for your setup as there are many variations to growing.

Additional Information

1) In order to have a successful grow growers should use at minimum Base A, Base B & Golden Tree.

2) For Veg: Add 1-2ml of Golden Tree per gallon to your reservoir. Then, add your base nutrient until PPM levels of the reservoir mixture reaches between 800-1000 (Hanna Scale)

For Flower: Add 2-5ml of Golden Tree, then add base nutrient into your reservoir until your PPM levels of the reservoir mixture reaches between 1000-1300 (Hanna Scale, which is 2.0-2.6 in EC.) Remember that this is a rough estimate. Strains and growing mediums vary, some will enjoy higher PPM's and some lower. Flushing at the end is not necessary.

Shake bottle and measure out 3-5mL per gallon of water

Apply to the root zone, or use as a foliar spray. For optimal results feed with every watering as needed throughout your entire growing season.

We are confident that you will be pleased with your product and offer a 100% satisfaction guarantee.

If you are not satisfied simply return the unused portion to us within 6 months along with your original receipt for a full refund.

Frequently Asked Questions

Yes!

Humboldts Secret CalMag & Iron can be used as both a soil drench and foliar spray.

Coco coir naturally draws on calcium and magnesium making it unavailable to plants. By using Humboldts Secret CalMag & Iron you can avoid any deficiencies before they happen.

CalMag & Iron help correct many common plant deficiencies, helps supplement calcium and magnesium for those using RO water, and helps increase nutrient absorption!

Customer Feedback

Don’t just take our word for it..

Rated by hundreds of happy growers

I used this with other nutes to help prevent know deficiencies in 'tomato plants'...I never experienced any of the symptoms that are common to these plants while using this product. Will buy again!

Verified Purchase

Humbolt's Secret appears to be doing a great job of keeping our roses healthy

Verified Purchase

Love the product. With just one application I started seeing positive results. Plants started to set buds and I also see new roots emerging. The vegetable garden is growing exuberanty. Have used other cal/ mag products but never saw immediate results like this

Verified Purchase

Great stuff, plants responding well, with no known deficiencies.

Verified Purchase

Grow bigger plants with more yield in less time without struggle

Get the Startaer Kit for only ~~$149.99~~ $109.99

Each Starter Kit Includes:

World's Best Base Nutrient System Grow & Bloom Base A and B (1/4 Gallon of Each)
Golden Tree (1/8 Gallon)
Flower Stacker (1/4 Gallon)
CalMag & Iron (1/4 Gallon)
Plant Enzymes (8 Ounces)

Learn More

Greg S.

This work excellent on helping plants with nutrients deficiency.

paris t.

Plants are strong and healthy.

Kayla L.

Found this on an internet search and it worked! No more end blossom rot. Thanl you Humbolts!

john a.

My vegetable plants were yellow and not produce vegetables use your product and showed great improvement on the growth of vegetables

Jason Hommes

Great growth literally smells like poop _

Chad

Well worth it

Carrie Tucker

Good product, cheap price

Customer

I appears that this product is helping my plants recover from a lack of iron.

justin

First time user of the product and or works great my plants love it.

i_am_beer_dad

Does exactly what it says!

Deeps prema

Live the product. With just one application I started seeing positive results. Plants started to set buds and I also see new roots emerging. The vegetable garden is growing exuberanty. Have used other cal/ mag products but never saw immediate results like this

Customer

I love this product, it is easy to use, Easy to mix, and the plants love it, very good product.

Daniel

Worked as intended

Cottonboy46

Best on the Market

G Murph

I think it's a pretty good deal for the price and my plants seem to tolerate it well _ and like I said for a few bucks more than a 32oz it's well worth the money ________ I'd recommend it to others

William L.

works great !!!!

Calvin

Wanda Potts

My plants thrive on this. I use it for all my fertilizer.

Sid The Kid

I used this with other nutes to help prevent know deficiencies in 'tomato plants'...I never experienced any of the symptoms that are common to these plants while using this product. Will buy again!

Philip

Good product

Ike

Like that it has iron

Customer

I continue to use this wonder product.

V M Coniglio III

I have been using Humboldts Secret for about a year now and it seems to work very well. I feed on the low end of the scale so it lasts quite a long time.

MasterSconi

I added this to my standard Humboldts Secret regimine A&B. I originally was using another Calmag product because I use LED and now finally since I ran out of that I am using this. Seems to do the job great. Also it is more concentrated than the last one.

Montana Gal

Humbolt's Secret appears to be doing a great job of keeping our roses healthy .

Matthew Previdi

It's so easy to get caught in the trap of unknown nutrients on the internet. I have tested them all and let me say this is one of the best. Really simple, easy to use instructions and everything worked exactly as I needed. I plan on buying more when I run out.

Yo Murphy

My plants have never been healthier ever since I started using this product!

Customer

1/4 TSP PER GALLON PUT MY PPM UP TO 970 VERY CONCENTRATED

WesZ

This is a great product. I use R/O water on my plants and this product works great.

Customer

I noticed immediate results after using this CalMag. My plants are nice and green now and before they were a little deficient and did not look as good. Seems a lot stronger than other ones on the market and the price is good. I have used many others from different brands.

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OVERVIEW

This website is operated by HS Supplies LLC. Throughout the site, the terms “we”, “us” and “our” refer to HS Supplies LLC. HS Supplies LLC offers this website, including all information, tools and services available from this site to you, the user, conditioned upon your acceptance of all terms, conditions, policies and notices stated here.

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SECTION 4 - MODIFICATIONS TO THE SERVICE AND PRICES

Prices for our products are subject to change without notice.

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SECTION 5 - PRODUCTS OR SERVICES (if applicable)

Certain products or services may be available exclusively online through the website. These products or services may have limited quantities and are subject to return or exchange only according to our Return Policy.

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For more detail, please review our Returns Policy.

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We may also, in the future, offer new services and/or features through the website (including, the release of new tools and resources). Such new features and/or services shall also be subject to these Terms of Service.

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Certain content, products and services available via our Service may include materials from third-parties.

Third-party links on this site may direct you to third-party websites that are not affiliated with us. We are not responsible for examining or evaluating the content or accuracy and we do not warrant and will not have any liability or responsibility for any third-party materials or websites, or for any other materials, products, or services of third-parties.

We are not liable for any harm or damages related to the purchase or use of goods, services, resources, content, or any other transactions made in connection with any third-party websites. Please review carefully the third-party's policies and practices and make sure you understand them before you engage in any transaction. Complaints, claims, concerns, or questions regarding third-party products should be directed to the third-party.

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We do not guarantee, represent or warrant that your use of our service will be uninterrupted, timely, secure or error-free.

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In no case shall HS Supplies LLC, our directors, officers, employees, affiliates, agents, contractors, interns, suppliers, service providers or licensors be liable for any injury, loss, claim, or any direct, indirect, incidental, punitive, special, or consequential damages of any kind, including, without limitation lost profits, lost revenue, lost savings, loss of data, replacement costs, or any similar damages, whether based in contract, tort (including negligence), strict liability or otherwise, arising from your use of any of the service or any products procured using the service, or for any other claim related in any way to your use of the service or any product, including, but not limited to, any errors or omissions in any content, or any loss or damage of any kind incurred as a result of the use of the service or any content (or product) posted, transmitted, or otherwise made available via the service, even if advised of their possibility. Because some states or jurisdictions do not allow the exclusion or the limitation of liability for consequential or incidental damages, in such states or jurisdictions, our liability shall be limited to the maximum extent permitted by law.

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SECTION 15 - SEVERABILITY

In the event that any provision of these Terms of Service is determined to be unlawful, void or unenforceable, such provision shall nonetheless be enforceable to the fullest extent permitted by applicable law, and the unenforceable portion shall be deemed to be severed from these Terms of Service, such determination shall not affect the validity and enforceability of any other remaining provisions.

SECTION 16 - TERMINATION

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These Terms of Service are effective unless and until terminated by either you or us. You may terminate these Terms of Service at any time by notifying us that you no longer wish to use our Services, or when you cease using our site.

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SECTION 17 - ENTIRE AGREEMENT

The failure of us to exercise or enforce any right or provision of these Terms of Service shall not constitute a waiver of such right or provision.

These Terms of Service and any policies or operating rules posted by us on this site or in respect to The Service constitutes the entire agreement and understanding between you and us and govern your use of the Service, superseding any prior or contemporaneous agreements, communications and proposals, whether oral or written, between you and us (including, but not limited to, any prior versions of the Terms of Service).

Any ambiguities in the interpretation of these Terms of Service shall not be construed against the drafting party.

SECTION 18 - GOVERNING LAW

These Terms of Service and any separate agreements whereby we provide you Services shall be governed by and construed in accordance with the laws of 8650 Genesee Ave, Ste 214, San Diego , CA, 92192, United States.

SECTION 19 - CHANGES TO TERMS OF SERVICE

You can review the most current version of the Terms of Service at any time at this page.

We reserve the right, at our sole discretion, to update, change or replace any part of these Terms of Service by posting updates and changes to our website. It is your responsibility to check our website periodically for changes. Your continued use of or access to our website or the Service following the posting of any changes to these Terms of Service constitutes acceptance of those changes.

SECTION 20 - CONTACT INFORMATION

Questions about the Terms of Service should be sent to us at Support@HumboldtsSecret.com.

Returns Policy

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items:

Gift cards

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

There are certain situations where only partial refunds are granted: (if applicable)

Any item not in its original condition, is damaged or missing parts for reasons not due to our error. Any item that is returned more than 30 days after delivery

Refunds (if applicable)

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)

If you haven’t received a refund yet, first check your bank account again.

Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund yet, please contact us at Support@HumboldtsSecret.com.

Sale items (if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at Support@HumboldtsSecret.com and send your item to: 8650 Genesee Ave, Ste 214, San Diego, CA, 92192, United States.

Gifts

If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

Shipping

To return your product, you should mail your product to: 8650 Genesee Ave, Ste 214, San Diego, CA, 92192, United States.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

Satisfaction Guarantee

We are confident that you will be pleased with our product and offer a 100% Satisfaction Guarantee. If, however, for any reason you are not satisfied with your purchase simply return it. Details: To be eligible for a refund, return the unused product within 6 months along with your original receipt to the place of purchase for a full refund. If this was purchased online, the customer is responsible for return shipping.

CalMag & Iron

Making Growing Simple, Exciting, and Easier to Succeed At

Product Information

About CalMag & Iron

CalMag & Iron Feed Chart

We are confident that you will be pleased with your product and offer a 100% satisfaction guarantee.

Frequently Asked Questions

Customer Feedback

Don’t just take our word for it..

Rated by hundreds of happy growers

Grow bigger plants with more yield in less time without struggle

Each Starter Kit Includes:

We are confident that you will be pleased with your product and offer a 100% satisfaction guarantee.

Get the latest news and growing information from HSS

Privacy Policy

Terms & Conditions

Returns Policy

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