Mycorrhizal Inoculant SMS Additive for Worm Castings & Compost
Upgrade your soil the smart way with our Mycorrhizal Inoculant SMS Additive, designed to enhance worm castings, compost systems, and living soil blends.
Made from nutrient-rich spent mushroom substrate (SMS) and infused with endomycorrhizal fungi, this additive improves soil biology, supports stronger root systems, and increases moisture efficiency in your growing environment.
Whether you're running a vermicompost bin, building a compost pile, or dialing in your garden soil, this additive helps create a biologically active system that works faster and produces better results.
Built from Real Mushroom Production
This substrate is made from a proven blend of:
- Oak hardwood sawdust
- Soy hulls
Previously used to cultivate:
- Lion’s Mane
- Blue Oyster
- Golden Oyster
- Chestnut
- Shiitake
This means it’s already loaded with beneficial organic matter and microbial potential.
Key Benefits
- Enhances worm castings and compost performance
- Introduces beneficial mycorrhizal fungi
- Improves nutrient cycling and root development
- Supports moisture retention and aeration
- Accelerates decomposition in compost systems
Perfect For
- Worm bins (Red Wigglers & European Nightcrawlers)
- Backyard compost piles
- Raised beds and garden soil
- Mushroom growers and substrate mixing
- Living soil and regenerative gardening systems
Application Rate
Apply 1 oz per cubic foot of soil or compost.
Sprinkle into worm bins, mix into compost, or blend into soil before planting.
Category: Soil Amendment / Compost Additive / Mycorrhizal Inoculant
✅ How to Use It SAFELY (No Composting Route)
✔️ Option 1: Top Dress (Best move)
Apply ½ inch layer MAX
Keep it away from plant stems (2–3 inches)
👉 This lets nature finish breaking it down slowly
✔️ Option 2: Soil Mix-In (Controlled)
Mix at 10–20% of total soil volume
Don’t go heavy
👉 Think: amendment, not base soil
✔️ Option 3: Pre-Age It (Shortcut Method)
If you won’t compost, at least do this:
Let it sit 2–4 weeks
Keep it slightly moist
Turn it once or twice
👉 This knocks down the “hot” phase
✔️ Option 4: Pair It With Nitrogen
Counter the lock-up:
Add:
Blood meal
Fish emulsion
Grass clippings
Coffee grounds
👉 You’re balancing the carbon-heavy substrate
