{"product_id":"grodan-rockwool-cubes-sterile-inorganic-growing-medium-for-seed-starting-rooting-cuttings-1-5-inches-49-cubes","title":"Grodan Rockwool Cubes Sterile Inorganic Growing Medium for Seed Starting \u0026 Rooting Cuttings (1.5 Inches) 49 Cubes","description":"\u003cp\u003ePromote healthy root development and efficient propagation with Grodan Rockwool Cubes. Made from spun molten rock, this sterile, inorganic growing medium offers a nutrient-free environment ideal for rooting cuttings and starting seeds. Each 1.5-inch cube provides 20% air space when saturated, balancing moisture retention with optimal oxygen flow for vigorous root growth. Easily prepared by soaking in pH-adjusted water, these cubes ensure uniform size and consistency for seamless transplanting. Perfect for hydroponic systems, greenhouses, and home gardening, this 49-pack of reusable Rockwool cubes supports sustainable, high-quality plant propagation.\u003c\/p\u003e\n\u003ch2\u003eAbout this item\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePremium Inorganic Growing Medium – Made from spun molten rock, Grodan Rockwool cubes provide a sterile, nutrient-free environment perfect for rooting cuttings and promoting healthy plant growth.\u003c\/li\u003e\n\u003cli\u003eOptimal Air and Water Balance – With 20% air space when saturated, these cubes ensure excellent oxygen flow and moisture retention, creating ideal conditions for strong root development.\u003c\/li\u003e\n\u003cli\u003eEasy to Condition for Best Results – Simply soak the cubes for 8 hours in water with a pH of 5.0-5.5, then rinse with pH 7.0 water to prepare them for planting and maximize rooting success.\u003c\/li\u003e\n\u003cli\u003eConsistent Size for Uniform Growth – Each 1.5-inch cube is precisely sized to support consistent seedling growth and easy handling during propagation and transplanting.\u003c\/li\u003e\n\u003cli\u003eVersatile and Reusable – Perfect for hydroponics, greenhouses, and home gardening, these 49-pack cubes can be rinsed and reused, offering long-term value and sustainable growing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct specifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eItem Form\u003c\/th\u003e\n\u003ctd\u003eCubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpecific Uses For Product\u003c\/th\u003e\n\u003ctd\u003eRoot Development\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNumber of Packs\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eNumber of Items\u003c\/th\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel number\u003c\/th\u003e\n\u003ctd\u003e497154376400WEB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUnit Count\u003c\/th\u003e\n\u003ctd\u003e49 Count\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage\u003c\/th\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTarget Species\u003c\/th\u003e\n\u003ctd\u003eplants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Sillmend","offers":[{"title":"Default Title","offer_id":46397644243079,"sku":"AMZ-B0742KTHNQ","price":23.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/5780\/3911\/files\/41MtZ9SwccL.jpg?v=1793558956","url":"https:\/\/sillmend.com\/products\/grodan-rockwool-cubes-sterile-inorganic-growing-medium-for-seed-starting-rooting-cuttings-1-5-inches-49-cubes","provider":"Sillmend","version":"1.0","type":"link"}