50# Magriculture Epsom Salt (Magnesium Sulfate Heptahydrate) Agricultural Grade

(7 customer reviews)


SKU: EPS Categories: ,


This agricultural-grade magnesium sulfate heptahydrate (MgSO4•7H2O) is an extremely soluble and bioavailable source of magnesium and sulfur for the health of animals and plants.

For plants:

Contains essential plant nutrients: magnesium and sulfur
Optimum solubility needed to make true clear solutions and compatible with other soluble nutrients
Ideal source for all Fertigation Systems: center pivot, micro-jet, drip-trickle and foliar spray applications
Magnesium is critical as a central element in the chlorophyll molecule to capture energy from the sun and convert it to plant sugars via photosynthesis
Magnesium is especially required in sandy soils, soils with low CEC, for crops with high Mg demand and in situations of high applications of ammonium-N and/or potassium
For animals:

Contains macro-nutrient magnesium and secondary nutrient sulfur
Excellent solubility means greater animal bioavailability than other magnesium sources
Effective magnesium for the prevention and treatment of hypermagnesemia and grass tetany, especially in early lactating dairy cows
Effective magnesium nutrition in non-ruminant feeds; also used for enhanced mobility, reduced discomfort and a beneficial calming effect
Magnesium is an important cofactor in enzymatic reactions vital to every metabolic pathway in every animal species
Chemical Properties
Chemical Name: Magnesium sulfate heptahydrate
Formula: MgSO4•7H2O
CAS No: 10034-99-8*

GRAS – Generally Regarded As Safe

Guaranteed Analysis
Magnesium (Mg)
9.8% (min.)
9.8% water-soluble magnesium

Sulfur (S)
12.9% (min)

Additional information

Weight 52 lbs
Dimensions 29 × 19 × 7 in


7 reviews for 50# Magriculture Epsom Salt (Magnesium Sulfate Heptahydrate) Agricultural Grade

  1. Anonymous (verified owner)

    Good price fast shipping

  2. Anonymous (verified owner)

    best price possible, beats Costco, for this amount.

  3. Sharon S. (verified owner)

    THE most affordable bag of epsom salts anywhere. So grateful!

  4. Bryce (verified owner)

    The product arrived with the bag torn, which spilled Epsom Salt into the box, which then leaked due to being smashed up with two holes of its own. It was also strange that one of the corners of the bag had been taped, as if the bag had been damage prior to shipping and someone tried to patch it up. I recovered two and a half pounds that had leaked into the box. ​Fortunately, there was only about a half pound out of fifty that was missing.

    Aside from the mess, I suppose I’m happy. The price was competitive and ordering was easy enough. I’d probably order it again. I think I just had some bad luck this time around.

    I plan on using this as a soil amendment. So even with sweeping it off the garage floor, it should still work fine for my purposes.

  5. Stephaine Fennimore (verified owner)

    Didn’t not receive because of stock issues!

  6. Gary Clevenger (verified owner)

    A must for the organic gardener with a + or – of how your chemestry of your soil is currently…

  7. Anonymous (verified owner)

    Excellent source of Magnesium

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