{"product_id":"olympus-myco-97-pure-gypsum-powder-high-solubility-calcium-sulfate-dihydrate-for-soil-lawns-gardens-mushroom-substrates-10-lb","title":"Olympus Myco 97% Pure Gypsum Powder – High Solubility Calcium Sulfate Dihydrate for Soil, Lawns, Gardens \u0026 Mushroom Substrates – 10 lb","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eOlympus Myco 97% Pure Gypsum Powder is a premium calcium sulfate dihydrate designed to support a range of growing needs. Packaged in a HEPA enclosure and supplied in a 10 lb bag, it’s ready to mix into substrates or soils for added structure and balance. This gypsum powder is positioned to work across mushroom cultivation, lawn care, and garden applications, offering a practical option for hobbyists, home growers, and small-scale producers alike.\u003c\/p\u003e\n\u003cp\u003eDesigned for versatility, the powder blends with both soil and substrate media to influence chemistry, moisture, and texture—helping you build a dependable base for your projects without overpromising outcomes.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits for mushrooms and soil\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports substrate chemistry: pH adjustment, calcium and sulfur supply, and improved oxygen flow to support mycelium development.\u003c\/li\u003e\n  \u003cli\u003ePromotes healthy growth: high-purity calcium sulfate dihydrate helps provide essential nutrients to mushrooms while maintaining balance in the substrate.\u003c\/li\u003e\n  \u003cli\u003eEnhanced moisture management: gypsum’s moisture handling can help regulate substrate humidity for consistent conditions.\u003c\/li\u003e\n  \u003cli\u003eTexture and aeration: adding gypsum reduces clumping and improves substrate texture, aiding air circulation.\u003c\/li\u003e\n  \u003cli\u003eSolution-grade gypsum: a high-purity soil amendment that can help improve soil structure and reduce erosion while supplying calcium and sulfur to plants and mushrooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMoisture management and soil structure\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports water retention in diverse substrates, aiding uniform moisture across growing media.\u003c\/li\u003e\n  \u003cli\u003eMatrix balance: improves substrate cohesion without overly compacting the mix.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eProduct details emphasize a 97% calcium sulfate dihydrate composition and a dedicated packaging approach designed to preserve purity during storage and handling. While results vary by system and timeframe, many growers consider this gypsum powder a practical component for substrate preparation and soil conditioning.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is 97% pure gypsum powder used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A high-purity calcium sulfate dihydrate used to adjust substrate pH, supplement calcium and sulfur, and help manage moisture for soil, lawns, gardens, and mushroom substrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I store and package this gypsum powder?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Store in a cool, dry place; the HEPA enclosure helps limit contamination and keep the powder clean and ready for substrate preparation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Olympus Myco","offers":[{"title":"Default Title","offer_id":45793527922874,"sku":"B0C5K4FFXW","price":103.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/olympus-myco-gypsum-powder-substrate-pour.jpg?v=1776805793","url":"https:\/\/gardencanada.ca\/products\/olympus-myco-97-pure-gypsum-powder-high-solubility-calcium-sulfate-dihydrate-for-soil-lawns-gardens-mushroom-substrates-10-lb","provider":"Garden Canada","version":"1.0","type":"link"}