Take your composting and mushroom cultivation to the next level with our Mushroom Substrate Additive — a powerful supplement designed to work alongside your existing worm castings, vermicompost bins, or traditional compost setups.
This media is a 50% oak (hardwood sawdust) and 50% Soy hull mixture. Lion's Mane, Blue Oyster, and Shitake mushrooms were grown in these spent mushroom substrates (SMS).
This high-performance additive enhances microbial activity, improves substrate structure, and accelerates organic breakdown. It’s the perfect companion for red wigglers, European nightcrawlers, or hot compost piles, creating an environment that supports thriving mushroom mycelium and nutrient-dense compost.
Just sprinkle it into your worm bins, compost piles, or mushroom substrates to promote faster decomposition, better aeration, and optimal moisture balance.
Why Add It?
🔁 Enhances the efficiency of worm bins and compost piles
🍄 Creates a mycelium-friendly environment for mushroom growers
🌱 Stimulates beneficial microbes and soil life
💧 Helps regulate moisture and prevent anaerobic conditions
♻️ Perfect for backyard composters, worm farmers, and mushroom enthusiasts
Best Used With:
Worm castings | Vermicompost systems | DIY compost piles | Mushroom grow kits
Application Tip:
Use as a top-dressing in worm bins or mix into your mushroom grow medium to kickstart biological activity without disturbing your worms or compost balance.
