K Mag

(4 customer reviews)


Not Avail in California


Solution Grade MAGNESIUM POTASH and SULFUR Powder. Also known as KMAG SUL-PO-MAG and KMS. 22% Potassium with 11% Magnesium 22% SULFUR in a solution grade powder.

Perfect for adding Magnesium Potassium and sulfur to growing plants in any growing application.

Product form:

Dry powder

NPK analysis:


As a soil applied fertilizer or nutrient:

Dissolve 2-4 dry ounces in 1 gallon of water. Coverage is 100 – 500 sq. ft.

As a folier application:

dissolve 1 dry ounce in 1 gallon of water.

Additional information

Weight N/A

4 reviews for K Mag

  1. mrjansen

    Ah K-Mag – where have you been all this time? Never heard of this kind of mix before, and I find it very useful as a preventative measure against deficiencies that *might* occur. I’ve only used it at the strength mentioned in the mixing instructions. I’ve applied it on both mature and (very) young plants. The clones are sprayed at 2 weeks and the flowering plants are sprayed within the first two weeks of induction, while their metabolism is changing. These applications help prevent mag / sulfur deficiency, and I swear the clones look better even 24 hours after application. My only gripe – I wish calcium was thrown in this product, but I use their limestone powder as a top dressing instead.

  2. Hydrorod

    Great Stuff, really helps give that extra boost to my flowers Very impessive blend used either as a drench or spray for high performance maintenance during all growth stages but mainly during 3-5 week works for me.

  3. Bill

    Solid product .. been using it for a year now. Real nice shot of potassium, magnesium and sulfur. Gone up to 5 TBS per gallon once per week in flower with no ill effects.

  4. Carolyn

    My Myers lemon tree and all my grapes and berries love it. It sizes up the stem size, fruit size and flavor.

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