2 x 5 lb. Sterilized Supplemented Oak Hardwood Substrate

Our 2 x 5 lb. Sterilized Supplemented Oak Hardwood Substrate is a top-quality mushroom substrate that has been sterilized to ensure purity and supplemented with soy and gypsum for optimal growth. Expertly crafted from 100% oak hardwood, this substrate provides the perfect foundation for mushroom cultivation. Increase your yields with our trusted product.

Our supplemented hardwood substrate mushroom grow blocks are the perfect fruiting medium. We use 100% organic oak sawdust perfectly hydrated to field capacity. Our hardwood substrate blocks are supplemented with soy hulls for optimal results. We use the thickest bags available, to ensure the sterility of the block. Each block is 5 lbs. in an extra large bag, so they can be easily mixed after inoculation.

Specially formulated for wood-loving mushrooms, this pack of Sterilized Supplemented Oak Hardwood Substrate provides optimal growing conditions. Made from soy supplemented oak hardwood, this 2-pack is carefully sterilized for safe and efficient cultivation. Take the guesswork out of growing with this expert-approved substrate.

Avoid the hassle of balancing, mixing, and sterilizing your own growing medium. We offer sterilized substrates supplemented with all the nutrients needed to grow beautiful mushrooms. We only use the thickest bags, and all our substrates are made with 100% organic materials.