Bulk Vermiculite for Mushroom Cultivation

Improve moisture and nutrient retention! This asbestos-free, odorless, horticulture-grade vermiculite provides superior moisture and nutrient retention when used as a substrate additive. It also allows for greater aeration, an essential component for larger flushes and faster colonization. A3 medium coarseness is ideal for mushroom cultivation, as it has greater water retention capacity and can be used for external casings. Ideal for use in cake-style, manure-based, and straw-based mushroom cultivation methods. A thin layer can be added to the base of a fruiting chamber to increase ambient humidity. OMRI Certified - product can be used in certified organic operations under the USDA National Organic Program. ⚠ CAUTION: Avoid creating dust. Breathing dust may be harmful to your health. Use with adequate ventilation or with respiratory protection.