Tired of the mess and waste that comes with soil and coco coir? Our 10x10 reusable silicone grow medium gives you a clean, soil-free surface that cuts down on single-use growing materials and simplifies your setup. Pre-cut to fit standard 10x10 trays and built for the long haul.
Key Specifications
- Pre-Cut Dimensions: 9.25" x 9.25", fits standard 10x10 microgreen trays
- Hole Size: 1.2mm, great for root development and moisture retention
- Material: Food-grade platinum-cured silicone with a fiberglass core for durability. 3rd party tested for FDA compliance. LFGB tested and compliant.
- Lifespan: Rated for 20 to 30+ grow cycles per sheet with proper care
Why Growers Choose Silicone
The flexible silicone makes handling, seeding, and cleanup easier. It supports moisture retention and root aeration while staying gentle on your hands when you harvest and clean up. Root removal is faster than it is on a rigid surface, which adds up when you are running a full rack.
Works well with most popular microgreen varieties including Sunflower, Radish, Broccoli, Arugula, Basil, Cabbage, Kohlrabi, and most Brassica family crops.
Care and Maintenance
- Cleaning: After you harvest, use our Microgreen Medium Scraper/Cleaning Tool to remove root residue. Wash with warm water and a free-and-clear dish soap, or another silicone-safe, food-safe soap.
- Sanitization: For deeper sanitation between grows, carefully pour boiling water over the mat or submerge it for 1 to 2 minutes. Allow to air dry fully before reuse.
- Read our complete silicone care guide for stain troubleshooting and long-term maintenance tips.
Seed Compatibility
✅ Works Well With: Sunflower, Pea, Radish, Broccoli, Kale, Cabbage, Arugula, Basil, Mustard Greens, Kohlrabi, and most Brassica varieties
⚠️ More Challenging: Amaranth can grow successfully at 75°F with proper heat mat management. Very fine seeds may require adjustments depending on your setup.
❌ Not Recommended: Swiss Chard, Beets, and Cilantro, which perform better in soil or coco coir
💡 Best Without a Medium: Pea varieties with aggressive root systems often perform best directly on mesh trays without a grow medium.
Detailed seed compatibility infographics are included in the product photos.
Start Small, Scale Confidently
If you are new to reusable grow mediums, we recommend starting with a 2-pack to test the setup in your environment. Once you are dialed in, 10-packs offer better value for higher-volume growing.
Prefer Stainless Steel?
We offer this same 10x10 pre-cut size in 316-grade stainless steel if you want a rigid surface that resists cuts and tears. Not sure which suits your setup? Our 10x10 Sampler Pack includes both materials so you can test them side by side.
More Sizes Available
Looking for different tray sizes? We offer both silicone and stainless steel options in multiple pre-cut dimensions. Browse all reusable grow medium sizes here.
1-Year Warranty
All silicone mesh screens are backed by our 1-year warranty. Grow with confidence.
You May Find These Blogs Helpful
- Which Microgreen Seeds Work on Reusable Grow Mediums?
- Silicone Reusable Microgreen Grow Medium, Complete Overview
- How to Clean and Sanitize Microgreen Trays and Reusable Grow Mediums
- Microgreens and Mold: Prevention, Identification, and Treatment
- Knowing the Right Time to Transition Microgreen Trays from Weight to Blackout
- Common Mistakes When Growing Microgreens (And How to Avoid Them)
- Looking for the Best Microgreen Growing Advice? Start with On The Grow
- Frequently Asked Questions
Important Product Disclaimers
- Please review our Reusable Grow Medium Safety Disclaimer before purchasing
- Trays, seeds, and other items shown in photos are NOT included
- Silicone staining: Some seed varieties may cause natural staining on the surface. This does not affect performance.
- Fiberglass core: Replace your mat if you notice tears, deep cuts, or significant wear that could compromise the fiberglass core integrity. Learn more about replacement timing
- Variable results: Growing success depends on your environment, experience, and methods. We recommend testing with small packs before committing to larger quantities.
- NUTRITIONAL CONTENT DISCLAIMER: This 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. Nutrient 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. For the complete nutritional disclaimer, see our Safety Disclaimer page.