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10 Best gypsum for mushrooms in Canada
Best Choice01DRMycDrMyc.com Magical Gypsum for Mushroom Substrates - Lab Grade Purity Gypsum with Organic Humic Acid, Biochar, Sucrose & MGP Microbes for Mushroom Growing (1lb)
Main highlights- With Organic Biochar from Coconut Husks to Increase Fruitification of "hard to fruit" varieties
- Read our Reviews: Customers Agree our lab Grade Organic Gypsum is Amazing for Mushroom Cultivation and Plant Growth
- Includes Humic Acid as Microbe Food & to Stimulate Explosive Mycelial Growth - Also Works Great with 'Green Plants'
- High Quality Base Gypsum Regulates the PH of your Mushroom Substrate to Lessen Contam Rate
- A Great Carbon Source that Increases Yields and overall Vitality
9.9Exceptional
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- 02Boomer Shroomer
Boomer Shroomer Dry Bulk Substrate for Mushroom Cultivation (Coco Coir, Vermiculite, Gypsum) | Produces 10 Pounds of Pasteurized Substrate, Enough for Two Inflatable Monotub
Main highlights- Makes around 9 pounds of bulk substrate. Makes enough for two Boomer Shroomer Inflatable Monotubs.
- Just add 16 cups of boiling water and let pasteurize overnight.
- Bulk Substrate Ingredients: 500 grams Coco Coir, 500 grams Vermiculite, and 100 grams of Gypsum
- Any questions or concerns please contact Ashley at ashley@boomershroomer.com
9.8Exceptional
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- 03M.M BASICS
5 LB, Gypsum for Plants, Water Soluble, Rich in Calcium and Sulphur, Benefits Soil Structure, Porosity, Air Circulation, and Water Infiltration and Drainage (Gypsum 5 LB)
Main highlights- This product is 97% calcium sulfate dihydrate, which we can consider to be the purest.
- Moderate: 1.25-2.5 lbs/100 sq. ft
- Maintenance: 5-12.5 lbs/1000 sq. ft or 0.5-1.25 lbs/100 sq.ft
- Gypsum is a mined mineral fertilizer rich in calcium and sulphur. In addition to providing key nutrients, It benefits soil structure, porosity, air circulation, and water infiltration and drainage.
- Corrective: 2.5-5 lbs/100 sq. ft.
- APPLICATION RATES:
9.6Exceptional
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- 04Mycology Basics
Food Grade Ultra-Fine Gypsum for Mushroom Substrates, Brewing, Tofu - No Additives, 97% Calcium Sulphate, 22.5% Calcium (Ca) 18% Sulphur (S) - Packed in HEPA Case
Main highlights- USE WITH BREWING OR TOFU: Our gypsum is great for use with brewing, as a tofu thickener, or in any number of food recipes that require thickener
- RESEALABLE BAG - Our gypsum is professionally packed and sealed, meaning the gypsum will remain as a fine powder and can be resealed for later use
- INCLUDED Myco Basics Gypsum is the highest grade organic gypsum available, containing 97% calcium sulfate dihydrate, 22.5% calcium and 18% sulfur. Our gypsum is 100% water soluble and fine powder, with no excess residue or impurities
- IMPROVES SOIL STRUCTURE - Organic gypsum has been shown to significantly increase crop yields and can, when used with garden lime, reduce nutrient runoff and increase soil food web quality
- IDEAL FOR FUNGUS SUBSTRATES - Our gypsum is packed in a moisture-controlled HEPA package, meaning the risks of contamination, clumping and other issues are significantly reduced
9.4Excellent
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Value for Money05Olympus MycoGypsum Powder for Mushroom Substrate (1 lb), Lab Grade, Garden Soil Amendment (Calcium Sulfate Dihydrate), Packaged in HEPA Enclosure
19% OffMain highlights- Solution-Grade Purity (97%-99%): Premium gypsum soil amendment rich in calcium sulfate dihydrate to improve soil structure, reduce erosion, and support robust growth.
- Reduces Clumping & Improves Texture: Our garden gypsum loosens soil and substrate for better airflow, stronger root development, and healthier mushroom cultivation.
- Improves Soil & Substrate Structure: Prevents compaction and enhances air circulation for healthier roots and mushroom mycelium. Ideal for gardens, lawns, and grow operations.
- Enhances Water Retention: Promotes even moisture distribution, helping soil and substrate stay hydrated without becoming oversaturated or soggy.
- Boosts Plant and Mushroom Growth: High-purity gypsum for gardening delivers essential calcium and sulfur while maintaining a balanced pH for vibrant, thriving plants.
9.3Excellent
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- 06J PLUS T
J PLUS T Gypsum for Plants - Fast-Acting Calcium Sulphate Powder to Loosen Clay Soil & Improve Drainage - Natural Soil Conditioner for Houseplants, Gardens, Lawns, and Vegetables (5 LB)
Main highlights- SAFE, PURE & EASY TO APPLY: Our 97% pure Calcium Sulphate is finely ground and pelletized for low-dust, easy spreading with any standard spreader or by hand. It's a natural, safe choice for your garden, allowing kids and pets to return to the lawn immediately after application.
- REVITALIZE YOUR SOIL STRUCTURE: Say goodbye to compacted, heavy clay! Our fast-acting gypsum powder works immediately to break up dense soil, improving aeration, root development, and water penetration. Create the perfect foundation for your plants to thrive.
- ESSENTIAL CALCIUM & SULFUR BOOST: A powerhouse of nutrients for your garden. This natural mineral provides critical calcium to prevent common plant issues like Blossom End Rot in tomatoes and peppers, while sulfur enhances growth and vibrant colour. It's the secret to healthier, more productive plants.
- ENHANCED WATER EFFICIENCY: Transform your soil into a sponge, not a rock. Our solution-grade gypsum improves water infiltration and reduces wasteful runoff and pooling. This means water gets to the roots where it's needed, saving you time, water, and helping your plants survive dry spells.
- ALL-PURPOSE GARDEN & LAWN SOLUTION: Perfect for a wide range of applications. Use it to rejuvenate your lawn, enrich your vegetable garden, support your flowering shrubs, or even as a supplement for mushroom growing substrates. One natural product for all your gardening needs.
9.1Excellent
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- 07
Gaia GreenGaia Green Gypsum 2kg
Main highlights- Formulation minérale riche en calcium et soufre: Fournit des nutriments essentiels pour les plantes
- Corrige les carences en calcium et soufre: Utile pour atténuer la salinité du sol
- Approuvé pour une utilisation en agriculture biologique: Conforme aux normes canadiennes et écocertifié
- Améliore la structure du sol: Favorise la porosité, la circulation de l'air, l'infiltration et le drainage de l'eau
9.0Excellent
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- 08Flatland Fungi
Shroom-Pro CVG Mushroom Substrate | 5LB | Pre-Sterilized | Nutrient Optimized Coco Coir Mixture | Made in Canada | Comes Hydrated to Field Capacity | Grow Mushrooms at Home | Flatland Fungi (5 LB)
Main highlights- Use as soon as possible, as pre-sterilized substrate only stays sterile for a limited time
- Spores, agar culture, liquid culture, & spawn are sold separately.
- Pre-sterilized, hydrated, & balanced pH for maximum yields. Best results with P. Cub. varieties.
- Made in Canada
- Includes specialty Unicorn mushroom grow bag w/ a 14A filter patch for fresh air exchange & keeping contaminants out
- Coco coir, vermiculite, & gypsum nutrient mixture for optimized mushroom growth
8.8Very Good
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- 09Alpha Chemicals
Calcium Sulfate Dihydrate - Gypsum - CaSO4*2H2O - 10 Pounds
Main highlights- Very fine powder
- Used as a soil conditioner, soil pH reducer, and many other uses.
- Feed Grade
- Also known as Gypsum.
8.6Very Good
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- 10Flatland Fungi
Shroom-Pro All-in-One Mushroom Grow Bag | 5LB | Pre-Sterilized | Blended Rye & Millet Spawn Mixed w/CVG Substrate | Pre-hydrated | Mushroom Grow Kit for Home | Made in Canada by Flatland Fungi (5LB)
Main highlights- Use as soon as possible, as pre-sterilized substrate only stays sterile for a limited time
- The easiest method for growing mushrooms at home. Everything is done within one bag, no mess, no transfers. Simply inject, colonize, and grow.
- Spores, agar culture, & liquid culture, are sold separately.
- Pre-sterilized, hydrated, & balanced pH for maximum yields. Best results with P. Cub. varieties.
- Made in Canada
- Includes: Injection port for easy & safe inoculation, specialty mushroom grow bag w/ a filter patch for fresh air exchange & keeping contaminants out.
- Blended grain spawn (rye, millet, milo) mixed with coco coir, vermiculite, & gypsum substrate for nutrient optimized mushroom growth.
8.5Good
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