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🍄 Elevate your grow game with lab-grade gypsum perfection!
This premium gypsum powder, made of 97% pure calcium sulfate dihydrate, is ultra fine and highly soluble, designed specifically for mushroom substrate and soil conditioning. Packaged in a HEPA-filtered facility to prevent contamination, it improves soil structure, enhances nutrient absorption, and can boost mushroom yields by over 50%. Proudly USA-made, it’s a versatile, trusted choice for both professional mycologists and gardening enthusiasts.
| ASIN | B0D3V95WWZ |
| Best Sellers Rank | #25,510 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #714 in Garden Fertilizers |
| Brand | Mushroom Merchant |
| Brand Name | Mushroom Merchant |
| Coverage | Gypsum to Substrate Ratio 1:10 |
| Customer Reviews | 4.7 out of 5 stars 170 Reviews |
| Included Components | Instructions |
| Item Form | Powder |
| Item Weight | 16 ounces |
| Liquid Volume | 16 fluid ounces |
| Manufacturer | Mushroom Merchant |
| Mixing Ratio | 1:10 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | GYP1LBV1 |
| Specific Uses For Product | Mushroom Cultivation, Gardening |
| Target Species | mushrooms |
| UPC | 198168469224 |
| Unit Count | 16 Fluid Ounces |
T**A
Bit pricey but good
A bit pricey but I don't need a whole lot works great for mushrooms
M**E
Mushroom food!
It's allowing my mushrooms to grow! I'm happy with it! I'm not sure how else to rate it, other than it's doing what I wanted!
C**N
Mushy say thanks!!!
Another product at the right price!! My medicinal mushrooms love their substrate!!
A**R
Good
very fine powder, flowable
F**A
It worked fine
It worked thank you
A**N
Worked great for mushrooms
The powder dissolves well in water. I've only used a couple tablespoons so far but it's worked great. My mushrooms have grown well with it. A good value for the price.
R**A
Quality
Hi quality
P**N
Was great for my plants, didn't kill them anyhow.
I don't know the quality of this product personally but I know my plants aren't dying from incorporating it into my soil mix. They seem healthy so this product seems legit so far.
Trustpilot
3 weeks ago
2 weeks ago