{"product_id":"mi0512-1-5-rockwool-starter-plugs-56-cubes-for-hydroponics","title":"MI0512 1.5” Rockwool Starter Plugs – 56 Cubes for Hydroponics","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe MI0512 1.5 inch Rockwool Starter Plugs deliver a compact, inert starting medium designed for seed germination, clone rooting, and early growth in hydroponics. Supplied as two sheets, totaling 56 plugs, these cubes provide a clean, structural foundation that supports steady moisture and air exchange as young plants establish their roots.\u003c\/p\u003e\u003ch3\u003eWhy growers choose rockwool for starting plants\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFirm, shape holding plugs that resist crumbling during handling and transplanting.\u003c\/li\u003e\n\u003cli\u003eHigh oxygen availability and air filled porosity promote early root expansion.\u003c\/li\u003e\n\u003cli\u003eInert and sterile medium helps reduce contamination risk compared with soil based starts.\u003c\/li\u003e\n\u003cli\u003eStrong water and nutrient retention helps seedlings stay hydrated and nourished.\u003c\/li\u003e\n\u003cli\u003eVersatile for hobby projects and commercial propagation alike.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey advantages at a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePredictable moisture balance supports steady growth without overwatering.\u003c\/li\u003e\n\u003cli\u003eNeutral pH and natural rock composition offer a stable starting environment.\u003c\/li\u003e\n\u003cli\u003ePre drilled spaces simplify insertion of seeds or cuttings and speed up propagation.\u003c\/li\u003e\n\u003cli\u003eSuitable for cloning, germination, and early rooting across many hydroponic setups.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to use and transplant (summary)\u003c\/h3\u003e\u003cp\u003eTo start, briefly soak the plugs in a starter solution adjusted to pH 5.5. Do not squeeze the plug; if needed, cut rather than tear. When roots appear about 0.5 to 1 inch long, transplant into a larger block or final media. Keep the upper portion of the block moist as you transition to bigger volumes.\u003c\/p\u003e\u003ch3\u003eCare tips and notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWear gloves and eye protection when handling to keep the work area clean.\u003c\/li\u003e\n\u003cli\u003eWater sparingly after moving to larger blocks to maintain even moisture.\u003c\/li\u003e\n\u003cli\u003eMoisture management is easier with 3 to 4 inch blocks for beginners and pros alike.\u003c\/li\u003e\n\u003cli\u003eWarranty and support: contact via your order page for assistance; satisfaction or refund options are available.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWith its blend of firmness, sterility, and moisture control, the MI0512 starter plugs offer a practical starting point for growers looking to foster strong root systems in hydroponic environments. Consider them as a reliable option for seeds and clones entering a hydroponic cycle.\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 MI0512 1.5” Rockwool Starter Plugs used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ideal for seed germination, clone rooting, and early growth in hydroponic systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many plugs are included in the set and what are their sizes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The set contains 56 cubes, across 2 sheets, each measuring 1.5 inches square.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MI0512","offers":[{"title":"Default Title","offer_id":45741068026042,"sku":"B08W59XXJ7","price":55.1,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/mi0512-rockwool-starter-plug-1-5-inch.jpg?v=1774808766","url":"https:\/\/gardencanada.ca\/products\/mi0512-1-5-rockwool-starter-plugs-56-cubes-for-hydroponics","provider":"Garden Canada","version":"1.0","type":"link"}