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Premium 97 Solution Grade Diamond Gypsum
The first step in building potting soil or in building native soil is to get the calcium right!
Gypsum is Calcium Sulfate and is excellent calcium source for no-till growers. The added sulfur helps keep terps high and the soil balanced. EXTREMELY PURE
97% Calcium sulfate dihydrate, the purest avai
4.9
87 ratings
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Product is high quality.
Issue with packaging. 50lb bag shipped Shipped in a cardboard box which got damaged during shipping. Should be shipped in a stronger box, double boxed or boxed and double bagged. The box arrived damaged and product was spilling out when I received it.
D
David · August 3, 2026
Gypsum
Love it for my garden very good addition to the arsenal
J
Jason · April 12, 2026
Diamond K
I have tried other “fine “ gypsum and but none were really soluble like this.