Meet your new go-to for mushroom cultivation: Out-Grow's 50/50 blend of horse manure and golden wheat straw. This specialized mix caters specifically to mushroom varieties that thrive in dung/straw substrates, offering a balanced and optimized environment for substantial yields.

Our substrate arrives ready for action, pre-sterilized to ensure a contamination-free growing experience. All you have to do is integrate your chosen gourmet mushroom spawn into the sterilized grow bag, give it a good mix, and you're all set.

At Out-Grow, we prioritize the use of chemical-free, organic materials. That's why we combine field-leached horse manure, golden wheat straw, coconut coir, and vermiculite to create a substrate that's not just effective, but also eco-friendly. This blend results in a substrate rich in beneficial microbes and an airy structure that fosters rapid mycelial colonization and healthy fruiting.

The Out-Grow 50/50 blend comes in a sealed, sterilized mushroom grow bag, allowing you the freedom to either start cultivating right away or transfer the substrate to a container of your choice. Try it today and see the difference that a quality substrate can make in your mushroom cultivation efforts.