Mushroom Plug Spawn

Mushroom Plugs — Fully Colonized, Ready for Log Inoculation

Out-Grow stocks fully colonized mushroom plugs for log and stump inoculation in outdoor cultivation systems. Each mushroom plug consists of a 5/16" spiral-cut birch dowel fully colonized with vigorous mycelium, ready for immediate log inoculation. Mushroom plugs are sold in 100-count packages, sufficient for inoculating multiple logs or stumps. Popular mushroom plug varieties include Shiitake, Pearl Oyster, Pink Oyster, Lions Mane, and specialty wood-decay species.

Mushroom Plug Species Available

Mushroom plug varieties include Shiitake, Pearl Oyster, Pink Oyster, Grey Oyster, Brown Oyster, Lions Mane, Reishi, Turkey Tail, and Chicken of the Woods. Each mushroom plug variety consists of fully colonized 5/16" birch dowels ready for log inoculation. All mushroom plug species are suitable for hardwood log cultivation, with some varieties having specific host tree preferences detailed in individual product descriptions.

Mushroom Plug Product Format

All mushroom plugs are produced using 5/16" spiral-cut birch dowels fully colonized with healthy mycelium. Each mushroom plug package contains 100 plugs, sufficient for inoculating 3-5 logs depending on log diameter and inoculation spacing. Mushroom plugs arrive ready for immediate use and require only drilling, insertion, and wax sealing for successful log inoculation.

Why Choose Mushroom Plugs?

Mushroom plugs provide long-term outdoor mushroom production from logs and stumps with minimal maintenance requirements. Unlike indoor cultivation methods, mushroom plugs establish perennial production systems that fruit for multiple years. Mushroom plug cultivation works with natural rainfall and seasonal cycles, making it suitable for sustainable outdoor mushroom farming and agroforestry applications.

Log Inoculation with Mushroom Plugs

Mushroom plug inoculation requires fresh-cut hardwood logs, a drill with 5/16" bit, and cheese wax for sealing. Drill holes in logs at 6-inch spacing, insert mushroom plugs flush with bark surface, and seal with melted wax. Inoculated logs should be placed in shaded outdoor locations with natural moisture. Fruiting typically begins 6-18 months after inoculation depending on species and log conditions.

Shop Our Mushroom Plug Collection

Browse our complete mushroom plug inventory organized by species type and cultivation requirements. All mushroom plug varieties are fully colonized and ready for immediate log inoculation. Each mushroom plug package includes 100 plugs with basic inoculation instructions. Find the mushroom plug species suitable for your log types and growing conditions.