{"product_id":"mi0512-1-5-rockwool-starter-plugs-for-hydroponics-28-count-sheet","title":"MI0512 1.5” Rockwool Starter Plugs for Hydroponics – 28-Count Sheet","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMI0512 1.5” Rockwool Starter Plugs offer a clean, inert foundation designed for rooting cuttings and germinating seeds in hydroponic setups. Each sheet contains 28 uniform plugs measuring 1.5 inches, crafted to balance moisture retention with ample airflow. The medium is inorganic and sterile, providing a stable, soil-free environment that several growers appreciate for consistency and clean starts.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOne sheet with 28 rockwool starter plugs\u003c\/li\u003e\n  \u003cli\u003eEach plug is a 1.5” cube ready for propagation\u003c\/li\u003e\n  \u003cli\u003ePredrilled planting holes to simplify seeding and cloning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eInorganic \u0026amp; sterile growing medium helps minimize contamination risk\u003c\/li\u003e\n  \u003cli\u003eProminent air spaces support rapid early root growth when saturated\u003c\/li\u003e\n  \u003cli\u003eExcellent water and nutrient retention to keep plugs evenly moist\u003c\/li\u003e\n  \u003cli\u003eNeutral pH and inert composition provide a reliable propagation baseline\u003c\/li\u003e\n  \u003cli\u003eEasy handling for hobbyists and professional growers alike\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to use\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoak briefly:\u003c\/strong\u003e Dip plugs for about 10 seconds in a starter solution adjusted to pH 5.5. Avoid squeezing the plug.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeeding or rooting:\u003c\/strong\u003e Place your seed or cutting into the predrilled hole in the plug.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransplant timing:\u003c\/strong\u003e When roots appear about 0.5–1 inch below the plug, transplant into a larger block (3–4 inches) to simplify moisture control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoisture management:\u003c\/strong\u003e If using larger blocks, keep the upper portion moist by light misting or gentle watering.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWatering cue:\u003c\/strong\u003e Water about 15 minutes before the block dries to maintain even moisture levels.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTips \u0026amp; care\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eWear gloves and eye protection when handling materials.\u003c\/li\u003e\n  \u003cli\u003eDo not tear the plug; cut it as needed to avoid loose fibers.\u003c\/li\u003e\n  \u003cli\u003eFor best results, transplant when root growth is visible but not overly dense.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWarranty \u0026amp; support\u003c\/h2\u003e\n\u003cp\u003eCustomer support is available within 24 hours, and there is a money-back option if the product doesn’t meet expectations.\u003c\/p\u003e\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 included in the MI0512 1.5” Rockwool Starter Plugs package?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: One sheet with 28 starter plugs, each 1.5 inches, ready for propagation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I prep and transplant the plugs for best results?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Soak briefly at pH 5.5, plant in the predrilled hole, transplant when 0.5–1 inch roots appear into a 3–4 inch block, keep moisture balanced.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MI0512","offers":[{"title":"Default Title","offer_id":45740419449018,"sku":"B07VYKNGRW","price":44.96,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/mi0512-rockwool-starter-plugs-1-5-inch.jpg?v=1774781406","url":"https:\/\/gardencanada.ca\/products\/mi0512-1-5-rockwool-starter-plugs-for-hydroponics-28-count-sheet","provider":"Garden Canada","version":"1.0","type":"link"}