Gypsum Powder for Mushroom Substrate (5 lbs), Lab Grade, Garden Soil Amendment Adds Calcium, Repairs Salt Damage & Root Growth (Calcium Sulfate Dihydrate), Packaged in HEPA Enclosure

Took grease and oil out of my carport. I just spread it around, waited about 5 days an mess was gone. Just had to sweep up!

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During the last big storm, storm surge pushed sea water about six feet up into my back yard. Over the next couple weeks the grass started to turn brown. I sprinkled one pound of this gypsum powder onto the area that was browning and then watered it in for an hour. Over the next two weeks, the browning grass slowly turned back into green.

I bought this for my potted avocado trees that I had to bring in for the winter. The leaves were falling off and browning and I read that this is a great soil amendment. Now, my avocados are flowering and the leaves are all growing back and flourishing.

Don’t open like a bag of chips!! Very fine grade almost floats in the air out of the bag! Perfect for mycology purposes! Agar, grain spawn, substrates, etc!Will be buying more in the future!Thanks!

I tried to create a small sculpture using a mould but it took a very long time (about 4 days) to dry. Once it was dry it was also very brittle and fragile. Maybe this product is not fit for making sculptures.

I squeezed the bag to show that it’s very fine and soft in the pic.Big magical fruits , Mixes well in my boiling water. Then I dump the boiling water /gypsum into my cooler with the coir and vermiculite and let rest for three hrs. Bada bing bada boom.

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