{"product_id":"reusable-silicone-grow-medium-large-sprout-tray","title":"Reusable Silicone Grow Medium for Microgreens – Large Sprout Tray","description":"\u003ch1\u003e\u003cstrong\u003eReusable Grow Medium - Size: Large Sprout Tray - 1.2mm\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003eGrowing microgreens in our Large Sprouting Trays? This silicone reusable grow medium is pre-cut to fit perfectly, giving you a clean, soil-free growing solution that lasts for months. Designed specifically for the unique dimensions of sprouting tray systems, this food-grade silicone mat minimizes the waste and mess of traditional growing mediums while delivering consistent results.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Choose Silicone for Sprouting Trays?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePerfect fit for sprouting systems:\u003c\/strong\u003e Pre-cut to 8\" x 10\" to fit our \u003ca href=\"https:\/\/onthegrow.net\/collections\/microgreen-trays\"\u003eLarge Sprouting Trays\u003c\/a\u003e precisely. No trimming required—just drop it in and start growing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHydroponic reusable alternative:\u003c\/strong\u003e Unlike soil or coco coir that needs replacing after every harvest, this silicone mat can last for months with proper care. The 1.2mm holes provide optimal moisture retention and root aeration while reducing ongoing supply costs and waste.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy cleanup for tight spaces:\u003c\/strong\u003e Sprouting trays can be tricky to clean thoroughly, but the flexible silicone material makes root removal quick and effortless. Just use our \u003ca href=\"https:\/\/onthegrow.net\/products\/microgreen-medium-scraper\"\u003eMicrogreen Medium Scraper\u003c\/a\u003e, wash with warm water and free-and-clear soap, and you're ready for the next grow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerfect for popular varieties:\u003c\/strong\u003e Works well with Sunflower, Pea, Radish, Broccoli, Arugula, Basil, Cabbage, Kohlrabi, and most Brassica family microgreens. The reusable design maintains consistent moisture levels around roots while allowing you to add liquid nutrients directly through the mesh for enhanced growth.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Cut Dimensions:\u003c\/strong\u003e 8\" x 10\" – fits Large Sprouting Trays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Size:\u003c\/strong\u003e 1.2mm – great for root development and moisture retention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Food-Grade Platinum-Cured Silicone with fiberglass core for durability. 3rd party tested for FDA Compliance. LFGB Tested \u0026amp; Compliant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexibility:\u003c\/strong\u003e Easily customizable with household scissors if needed for custom sizing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifespan:\u003c\/strong\u003e Months of continuous use with proper care and maintenance\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eSilicone is rated for 20 to 30+ grow cycles per sheet with proper care\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eCare \u0026amp; Maintenance\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCleaning:\u003c\/strong\u003e After harvest, use our \u003ca href=\"https:\/\/onthegrow.net\/products\/microgreen-medium-scraper\"\u003eMicrogreen Medium Scraper\/Cleaning Tool\u003c\/a\u003e to remove root residue. Wash with warm water and a free-and-clear dish soap (or another silicone-safe, food-safe soap). The flexible silicone surface makes root removal significantly easier than rigid alternatives.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSanitization between grows:\u003c\/strong\u003e For thorough sanitation, carefully pour boiling water over the mat or submerge it for 1–2 minutes. Allow to air dry fully before reuse. Sanitize after every grow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTime investment:\u003c\/strong\u003e 5 minutes per mat from cleanup to sanitized and ready for the next grow. Many people wash and sanitize them in batches for faster timing.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eFor detailed cleaning protocols and troubleshooting stains, see our \u003ca href=\"https:\/\/onthegrow.net\/blogs\/news\/meet-our-new-reusable-microgreen-grow-medium-silicone\"\u003ecomplete silicone maintenance guide\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSeed Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e✅ Works Well With:\u003c\/strong\u003e Sunflower, Pea, Radish, Broccoli, Kale, Cabbage, Arugula, Basil, Mustard Greens, Kohlrabi, and most Brassica varieties\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ More Challenging:\u003c\/strong\u003e Amaranth, very fine Mustard seeds, and other tiny seeds may require adjustments\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e❌ Not Recommended:\u003c\/strong\u003e Swiss Chard, Beets, and Cilantro (these perform better in soil or coco coir)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e💡 Best Without a Medium:\u003c\/strong\u003e Pea varieties with aggressive root systems often perform best directly on mesh trays without a grow medium\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eMore Sizes Available\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eUsing different tray sizes? We offer silicone reusable grow mediums in multiple pre-cut dimensions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/onthegrow.net\/products\/1020-reusable-microgreen-grow-mediums-silicone-stainless-steel\"\u003e10x20 Size\u003c\/a\u003e for standard full-size trays\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/onthegrow.net\/products\/1020-reusable-microgreen-grow-mediums-silicone-stainless-steel\"\u003e10x10 Size\u003c\/a\u003e for half-size growing\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/onthegrow.net\/collections\/reusable-microgreen-grow-mediums\"\u003eSmall Sprout Tray Size\u003c\/a\u003e for compact sprouting setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/onthegrow.net\/collections\/all\/reusable-mediums\"\u003eBrowse all reusable grow medium sizes here\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWant to Try Both Materials?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eNot sure if silicone is right for you? Our \u003ca href=\"https:\/\/onthegrow.tv\/ReusableSamplerPack\"\u003e10x10 Sampler Pack\u003c\/a\u003e includes both silicone and stainless steel samples so you can test both materials in your setup before committing to larger quantities.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e1-Year Warranty\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAll silicone mesh screens are backed by our 1-year warranty. Grow with confidence knowing you're covered.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eYou may find these blogs helpful:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/microgreen-seed-compatibility-reusable-grow-mediums-guide\"\u003eWhich Microgreen Seeds Work on Reusable Grow Mediums?\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/meet-our-new-reusable-microgreen-grow-medium-silicone\"\u003eSilicone Reusable Microgreen Grow Medium - Complete Grow Medium Overview\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/how-to-clean-sanitize-microgreen-trays-reusable-mediums\"\u003eHow to Clean and Sanitize Microgreen Trays and Reusable Grow Mediums: Complete Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/microgreens-mold-prevention-identification-complete-guide\"\u003eMicrogreens and Mold: The Complete Guide to Prevention, Identification, and Treatment\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/unlocking-the-secret-knowing-the-right-time-to-transition-microgreen-trays-from-weight-to-blackout\"\u003eKnowing the Right Time to Transition Microgreen Trays from Weight to Blackout\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/microgreen-growing-mistakes-how-to-avoid\"\u003eCommon Mistakes When Growing Microgreens (And How to Avoid Them)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"article__title\" id=\"title-0\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/blogs\/microgreens\/best-microgreen-growing-advice-resources-on-the-grow\"\u003eLooking for the Best Microgreen Growing Advice? Start with On The Grow\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"text-text-100 mt-3 -mb-1 text-[1.375rem] font-bold\" data-asw-orgfontsize=\"35\" data-asw-orglineheight=\"42\" data-asw-orgletterspacing=\"NaN\" data-asw-orgbgnotimg=\"none\"\u003e\u003ca href=\"https:\/\/onthegrow.net\/pages\/faq\"\u003eFrequently Asked Questions\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eImportant Product Disclaimers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlease review our \u003ca href=\"https:\/\/onthegrow.net\/pages\/safety-disclaimer-for-stainless-steel-medium-use\"\u003eReusable Grow Medium Safety Disclaimer\u003c\/a\u003e before purchasing\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTrays, seeds, and other items shown in photos are NOT included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone staining:\u003c\/strong\u003e Some seed varieties may cause natural staining on the silicone surface—this doesn't affect performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiberglass core:\u003c\/strong\u003e Replace your mat if you notice tears, deep cuts, or significant wear that could compromise the fiberglass core integrity. \u003ca href=\"https:\/\/onthegrow.net\/blogs\/news\/meet-our-new-reusable-microgreen-grow-medium-silicone\"\u003eLearn more about replacement timing\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot recommended for:\u003c\/strong\u003e Swiss Chard, Beets, Cilantro (these perform better in traditional soil-based methods)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChallenging varieties:\u003c\/strong\u003e Amaranth, fine Mustard seeds, and other very small seeds may require special techniques\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"font-size: 0.875rem;\"\u003eNUTRITIONAL CONTENT DISCLAIMER: \u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThis product is an inert growing medium that does not add or remove nutrients from your crops. We make NO claims about nutritional content or nutrient density of microgreens grown using this product. \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eNutrient density depends on many factors outside our control including seed variety, water quality, light, fertilizers, and growing conditions - not the growing medium itself. We have not conducted laboratory testing and are not nutritionists. \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eFor complete nutritional disclaimer, see: \u003c\/span\u003e\u003ca style=\"font-size: 0.875rem;\" href=\"https:\/\/onthegrow.net\/pages\/safety-disclaimer-for-stainless-steel-medium-use\"\u003e[link to Safety Disclaimer page]\u003c\/a\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eSustainable, reusable growing for your sprouting tray system—clean, efficient, and built to last.\u003c\/strong\u003e 🌱\u003c\/p\u003e","brand":"On The Grow","offers":[{"title":"SILICONE: 2-pack - Large Sprouting Mesh","offer_id":43825622712475,"sku":"LST-SILICONE-2PACK","price":7.47,"currency_code":"USD","in_stock":true},{"title":"SILICONE: 10-pack - Large Sprouting Mesh","offer_id":43825622745243,"sku":"LST-SILICONE-10PACK","price":29.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0594\/0278\/0827\/files\/reusable-silicone-grow-medium-sprouting-tray-seeds-germinating-closeup.jpg?v=1776121521","url":"https:\/\/onthegrow.net\/products\/reusable-silicone-grow-medium-large-sprout-tray","provider":"On The Grow","version":"1.0","type":"link"}