CLEARANCE: Grodan - Rockwool - Grodan Cress Plate Propogation Mat 10 in x 20 in

The Grodan Rockwool Cress Plate is the ideal growing media for seed starts, microgreens, baby leaf crops, wheatgrass, and specialty greens. Designed specifically for high-density, fast-turn production, this is the thinnest Grodan® stone wool product available, making it perfectly suited for shallow-rooted crops that do not require deep substrate.

Each 10" x 20" mat fits standard propagation trays, microgreen trays, humidity domes, and most flood or NFT-style systems. The slim profile maximizes tray efficiency while reducing excess media waste, making it a practical choice for both commercial growers and serious home producers.

Manufactured from premium stone wool, Grodan Cress Plates feature a consistent fiber structure and uniform density. This allows for rapid, even water distribution across the entire mat, eliminating dry spots and oversaturated areas. The result is quick and reliable germination, strong root development, and uniform canopy growth from edge to edge.

The controlled structure also provides an ideal air-to-water ratio, supporting healthy root oxygenation while maintaining sufficient moisture for delicate seedlings and microgreens. Because the media is clean and inert, it offers a more sanitary alternative to soil or loose substrates, helping reduce mess and variability in production environments.

Key Benefits:
• Ultra-thin profile optimized for microgreens and baby leaf crops
• Standard 10" x 20" size fits most trays
• Uniform density for even moisture levels
• Fast, consistent germination
• Excellent water retention with proper aeration
• Clean, sterile, and easy to handle

Whether you are growing arugula, basil, cilantro, radish, mustard, broccoli microgreens, sunflower shoots, or specialty greens, Grodan Cress Plates provide consistent, professional-level results tray after tray.