SKU: 29639302791

FoxFarm Cal-Mag (1 gal)

Sale price$75.59 Regular price$83.99
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

FoxFarm Cal-Mag (1 gal)Gringo Rasta Cal Mag from FoxFarm is designed to support strong plant structure and healthy yields by supplying two essential secondary nutrientscalcium and magnesium. These minerals play a vital role in strengthening cell walls, aiding in enzyme activity, and supporting fruit and flower development for a more productive garden. Ideal for use in both soil based and hydroponic systems, Cal Mag helps prevent common nutrient deficiencies that can lead to

Gringo Rasta® Cal-Mag from FoxFarm is designed to support strong plant structure and healthy yields by supplying two essential secondary nutrients—calcium and magnesium. These minerals play a vital role in strengthening cell walls, aiding in enzyme activity, and supporting fruit and flower development for a more productive garden.

Ideal for use in both soil-based and hydroponic systems, Cal-Mag helps prevent common nutrient deficiencies that can lead to issues like blossom end rot or poor bud formation. Its formula is OMRI Listed® and registered as a CDFA Organic Input Material, ensuring it’s suitable for certified organic growing. Containing 3% calcium and 0.9% magnesium, it’s derived from calcium carbonate, magnesium sulfate, and soy protein hydrolysate for efficient nutrient uptake.

Whether you’re growing vegetables, fruits, or flowering plants, this supplement can be a valuable part of your feeding program to promote overall plant vigor and resilience.

For more soil health and plant nutrition products, explore our Fertilizer & Growing Supplies collection.

  • Size: 1 gallon
  • Calcium Content: 3%
  • Magnesium Content: 0.9%
  • Suitable For: Soil and hydroponics
  • Organic Certification: OMRI Listed®, CDFA Organic Input
  • Derived From: Calcium carbonate, magnesium sulfate, soy protein hydrolysate
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29639302791

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4.4 ★★★★★
Based on 8 reviews
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Verified Purchase
Heather H Ansley
Port Orchard, US
★★★★★ 5
Goldilocks of socks!
Size: Medium, Color: Deep Sea/Breaker Blue/Electro Pink
Great socks....good support - the goldilocks. Not too thick or too thin; stay up nicely. Love the colors!
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Reviewed in the United States on January 30, 2024
P
Verified Purchase
Penny
Phoenix, US
★★★★★ 5
Best socks
Size: Medium, Color: Pink Elixir Assorted
Everyone got socks in their stockings this year. But no one was complaining. They weren't thin like some socks. But not super thick either. Just right. I even bought a pair for myself. No regrets. Will definitely buy again.
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Reviewed in the United States on January 24, 2024
L
Verified Purchase
LC
Louisville, US
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
L
Verified Purchase
Lucy Mejia
Lexington, US
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
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Verified Purchase
Twins9
Lake Worth, US
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026

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