Description
Our 50/50 Horse Manure & Wheat Straw Mushroom Substrate is a professionally prepared bulk substrate designed for dung and straw-loving mushroom varieties. The composted horse manure provides rich, slow-release nutrients, while chopped wheat straw improves aeration and structure, allowing mycelium to colonize quickly and evenly. This balanced blend supports strong flushes and consistent performance.
Each 5 lb bag is fully pasteurized and hydrated to optimal field capacity in our professional mycology laboratory, saving you hours of preparation and reducing contamination risk. Simply mix with fully colonized grain spawn and allow it to colonize in the bag or transfer to your preferred fruiting container. Ready to use, reliable, and produced by Out-Grow with nearly 20 years of substrate experience.
Need mushroom grain spawn? Shop Sterilized Rye Berry Grain Spawn Bag – 1lb With Injection Port
Also pairs with Sterilized Popcorn Grain Spawn Bag - 1lb
50/50 Horse Manure and Straw Mushroom Substrate (5lb Bag)
Storage
Inoculation
Colonization
Fruiting
Additional Tips
Description
Our 50/50 Horse Manure & Wheat Straw Mushroom Substrate is a professionally prepared bulk substrate designed for dung and straw-loving mushroom varieties. The composted horse manure provides rich, slow-release nutrients, while chopped wheat straw improves aeration and structure, allowing mycelium to colonize quickly and evenly. This balanced blend supports strong flushes and consistent performance.
Each 5 lb bag is fully pasteurized and hydrated to optimal field capacity in our professional mycology laboratory, saving you hours of preparation and reducing contamination risk. Simply mix with fully colonized grain spawn and allow it to colonize in the bag or transfer to your preferred fruiting container. Ready to use, reliable, and produced by Out-Grow with nearly 20 years of substrate experience.
Need mushroom grain spawn? Shop Sterilized Rye Berry Grain Spawn Bag – 1lb With Injection Port
Also pairs with Sterilized Popcorn Grain Spawn Bag - 1lb