Green Grass Grove
Connecting specimen records, habitat data, and the living archive.
Shiitake
Lentinula edodesMajor culinary and functional-food mushroom grown on hardwood logs or blocks.
Botanical Overview
Major culinary and functional-food mushroom grown on hardwood logs or blocks.
Ethnobotanical, Bioactive & Cultural Documentation
Document culinary, medicinal, cultural, craft, ecological, or entheogenic history with named sources and regional context.
Record verified compounds and analytical sources here. Do not infer clinical efficacy from compound presence alone.
Relationships are ranked A–X in fungal_relationship_evidence; unsupported strain claims require confirmation.
Confirm local regulations before cultivation, sale, transport, release, or wild collection.
Mycology Overview & Ecology
Category: Culinary
Trophic Mode: saprotrophic white-rot decomposer of hardwood
Natural Host / Substrate: Freshly cut hardwood logs or sterilized hardwood sawdust blocks.
Cultivation Environment: Shaded log yards or controlled block rooms with a long maturation/browning phase.
Shiitake yield and fruiting response are highly strain-dependent. Synthetic logs require a distinct browning/maturation phase before shock initiation.
Inoculation Methods & Sterile Technique
Agar Transfer
Clean tissue or culture is transferred between sterile agar plates to isolate healthy growth and verify contamination before expansion.
Liquid Culture
A verified clean culture is expanded in sterile nutrient solution for measured syringe or pipette inoculation.
Grain Spawn
Sterile grain is colonized as an expansion medium, then used to inoculate a species-appropriate fruiting substrate. Grain is not a universal fruiting substrate.
Sawdust Spawn
Hardwood sawdust spawn is useful for wood-loving fungi, production blocks, logs, stumps, and outdoor beds.
Plug Spawn
Colonized wooden dowels are inserted into drilled hardwood logs or stumps for long-term outdoor fruiting.
Outdoor Bed
Spawn is layered through moistened hardwood chips, straw, or species-appropriate organic material in a shaded bed.
Sterile Block
Supplemented sawdust or another validated substrate is hydrated, bagged, sterilized, inoculated, colonized, then fruited under controlled conditions.
Low-Tech Purchased Spawn
A beginner-friendly route using commercially prepared clean spawn with pasteurized straw, logs, or outdoor beds when the species supports it.
Species-Specific Inoculation: Agar to grain or sawdust, grain to supplemented blocks, and plug or sawdust spawn into hardwood logs.
Sterile Workflow / Flow Hood: Sterilize supplemented blocks and inoculate aseptically; log inoculation is clean and holes are sealed to retain moisture.
Low-Tech / Still-Air-Box Workflow: Use purchased plug or sawdust spawn in suitable hardwood logs maintained in a shaded, moist laying yard.
Spawn, Grain & Fruiting Substrates
Spawn / Inoculum: Hardwood sawdust, plug, or grain spawn from a verified strain.
Fruiting Substrate: Hardwood logs or sterilized supplemented hardwood sawdust blocks.
Natural Host: Freshly cut hardwood logs or sterilized hardwood sawdust blocks.
Colonization, Fruiting & Environment
Colonization: Colonize blocks near 20–24 C, then allow popcorning and browning before initiation; logs require months of shaded incubation.
Fruiting: Initiate mature blocks or logs with soaking, cooling, and physical shock; fruit approximately 12–20 C with high humidity and fresh air.
Humidity / Fresh-Air Exchange: High humidity at initiation and moderate fresh-air demand; avoid condensation and stagnant air on caps.
Fruiting Triggers: Block browning and maturation followed by water shock, cooling, oxygen, light, and physical disturbance.
Outdoor, Log & Bed Cultivation
Well established on hardwood logs; protect from drying and allow long colonization before scheduled soaking and shock.
Harvest, Contamination & Culture Storage
Harvest Cues: Harvest firm caps while margins are still partly enrolled and before caps flatten fully or release excessive spores.
Contamination Risks: Trichoderma-like molds, competitor wood fungi, bacteria in over-wet blocks, mites, flies, premature fruiting, and incomplete block browning.
Culture / Spawn Storage: Maintain strain-labeled master culture and preserve wide-range versus cool- or warm-weather strain information.
Mycology Batch Planner
Mycology Batch Calculator
Estimate hydrated spawn and bulk substrate for legal culinary, functional, educational, and ecological fungi. Select a working vessel, choose the fill target and spawn ratio, then enter the number of units.
Pests, Diseases, Safety & Toxicology
Raw or undercooked shiitake can trigger flagellate dermatitis in susceptible people; allergy and gastrointestinal reactions are also possible.
Cook thoroughly, use verified culture, and keep wild identification separate from cultivated-stock records.