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Deal.ai › Brands

Is Jack's Nutrients on Sale? November 2026

Prices checked Nov 13, 2026, 10:45 PM ET

Is Jack's Nutrients on sale?

Not right now: Jack's Nutrients prices are at their usual levels.

Jack's Nutrients prices today, and how low they've been

  • Jack's Nutrients
    Jack's Nutrients Magnesium Sulfate Epsom Salts Water-Soluble Fertilizer, 25lbs
    Jack's Nutrients Magnesium Sulfate Epsom Salts Water-Soluble Fertilizer, 25lbs$24.99 at Garden Elements    Visit Garden Elements
  • Jack's Nutrients
    Jack's Nutrients Jack's 5-12-26 Hydroponic
Jack's Nutrients Jack's 5-12-26 Hydroponic
$28.00 at Jack' Nutrients
Visit Jack' Nutrients
  • Jack's Nutrients
    Jack’s Nutrients Magnesium Sulfate Epsom Salts Water-Soluble Fertilizer
    Jack’s Nutrients Magnesium Sulfate Epsom Salts Water-Soluble Fertilizer$76.77 at Amazon    Visit Amazon
  • Jack's Nutrients
    Jack's Nutrients Epsom Salt
    Jack's Nutrients Epsom Salt$16.99 at Greenhouse Megastore    Visit Greenhouse Megastore

    • Not right now. Jack's Nutrients prices are at their usual levels: the Jack's Nutrients Magnesium Sulfate Epsom Salts Water-Soluble Fertilizer, 25lbs is $24.99 at Garden Elements. Any Jack's Nutrients deal shows here as soon as it starts.

    Jack's Nutrients is a commercial-grade fertilizer brand built on dry, water-soluble salts, widely used by hydroponic and greenhouse growers for precise control over nutrient ratios. Its standout products are the 5-12-26 Hydroponic blend and Magnesium Sulfate Epsom Salts, both sold in bulk sizes for large reservoirs. Every store's price for these products is checked, with each store's price history kept alongside it.

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    Buying guides that pick Jack's Nutrients

    • Buying guide · 10 picksBest soluble fertilizer salts for hydroponics

    Popular Jack's Nutrients comparisons

    • Jack's Nutrients Magnesium Sulfate Epsom Salts vs Cropsalt 1lb Starter Pack
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    • General Hydroponics FloraPro Calcium + Micros vs Jack's Nutrients Magnesium Sulfate Epsom Salts

    Questions and answers

    What is Jack's 5-12-26 Hydroponic used for?
    It is a dry hydroponic base nutrient with an NPK ratio of 5-12-26 plus calcium, magnesium and micronutrients. It is designed to be paired with calcium nitrate and magnesium sulfate to complete a full feed program. It dissolves cleanly and suits recirculating and drain-to-waste systems.
    Is Jack's Nutrients fertilizer fully water-soluble?
    Yes. Jack's products are dry salts formulated to dissolve completely in water, which is why they are common in hydroponics and drip irrigation. Stir thoroughly and check that no undissolved granules remain before feeding.
    What is the Epsom salts product used for in a nutrient program?
    It is magnesium sulfate, supplying magnesium and sulfur to support chlorophyll production and nutrient uptake. It is typically added as a separate part alongside a base nutrient like Jack's 5-12-26. It also works as a foliar spray at low strength.
    Does Jack's Nutrients offer a warranty?
    Jack's sells agricultural fertilizers, so warranty terms depend on the retailer you buy from rather than a brand-wide policy. Check the seller's return window and defect terms before ordering bulk bags. Damaged or mis-shipped bags are usually handled by the store.
    Can Jack's Nutrients be returned if a bag is opened?
    Return policies are set by each retailer, and opened fertilizer bags are often restricted for safety and resale reasons. Confirm the store's terms on unopened and opened bags before purchase. Report leaks or torn packaging on arrival.
    Are there Jack's Nutrients discount codes?
    Deal.ai checks what Jack's Nutrients products actually cost at every store, so a real markdown shows on this page as a deal as soon as it starts, and each product's page has its price history to tell a sale from its usual price.