Gypsum Powder for Mushroom Substrate (1 lb), Lab Grade, Garden Soil Amendment (Calcium Sulfate Dihydrate), Packaged in HEPA Enclosure
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Top Deal Highlights
- Competitive market price drop
- Official Olympus Myco brand quality & warranty
- Eligible for fast Canada-wide shipping
Key Consideration
High popularity item — clearance prices can expire as seller inventory depletes.
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Shoppers seeking premium quality at a verified all-time Canadian market low.
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Product Overview & Specifications
About this item Improves Soil & Substrate Structure: Prevents compaction and enhances air circulation for healthier roots and mushroom mycelium. Ideal for gardens, lawns, and grow operations. Boosts Plant and Mushroom Growth: High-purity gypsum for gardening delivers essential calcium and sulfur while maintaining a balanced pH for vibrant, thriving plants. Enhances Water Retention: Promotes even moisture distribution, helping soil and substrate stay hydrated without b
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