Green Grass Grove
Connecting specimen records, habitat data, and the living archive.
Hen of the Woods / Maitake
Grifola frondosaChoice edible clustered polypore with culinary and functional-food interest.
Botanical Overview
Choice edible clustered polypore with culinary and functional-food interest.
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: facultative parasite and saprotrophic white-rot decomposer associated with hardwood roots and bases
Natural Host / Substrate: Mature hardwood roots, buried wood, stumps, and especially oak-associated woody material.
Cultivation Environment: Cool controlled blocks or long-cycle outdoor buried-block and hardwood systems with stable moisture.
Maitake is not an ordinary fast-cycle sawdust mushroom. Long maturation and precise low-CO2 initiation are central to normal frond formation.
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, grain to supplemented sawdust, sawdust spawn to buried blocks or prepared hardwood units.
Sterile Workflow / Flow Hood: Sterilize supplemented blocks and inoculate aseptically; quarantine slow or sectoring cultures.
Low-Tech / Still-Air-Box Workflow: Use purchased spawn in a validated buried-block or outdoor hardwood method; production is slower and less predictable than oyster cultivation.
Spawn, Grain & Fruiting Substrates
Spawn / Inoculum: Verified grain culture expanded to hardwood sawdust spawn or plug spawn.
Fruiting Substrate: Sterilized supplemented hardwood blocks, buried hardwood blocks, hardwood logs, or stump-based systems.
Natural Host: Mature hardwood roots, buried wood, stumps, and especially oak-associated woody material.
Colonization, Fruiting & Environment
Colonization: Colonize hardwood substrate near 20–24 C, then allow full maturation before initiation; avoid heat buildup in dense blocks.
Fruiting: Initiate with cooler 10–18 C conditions, high humidity, diffuse light, and low CO2; maintain 12–20 C during frond expansion.
Humidity / Fresh-Air Exchange: High humidity is needed at primordia, but vigorous fresh-air exchange is essential for open, well-branched fronds.
Fruiting Triggers: Substrate maturity, cooling, moisture recharge, oxygen increase, diffuse light, and strain-specific block conditioning.
Outdoor, Log & Bed Cultivation
Suitable for buried hardwood blocks or prepared dead wood near, but not inoculated into, valued living hardwoods.
Harvest, Contamination & Culture Storage
Harvest Cues: Harvest clustered gray-brown fronds while margins are firm and pores are still young, before yellowing, drying, or heavy spore release.
Contamination Risks: Trichoderma-like molds, bacteria in wet blocks, competitor wood fungi, mites, flies, and premature block fruiting.
Culture / Spawn Storage: Store low-passage master cultures refrigerated or cryogenically; retain strain records because fruiting and yield vary greatly.
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
A verified cultivated crop is culinary after cooking, but allergy and gastrointestinal reactions remain possible. Wild identification and therapeutic claims require separate review.
Do not inoculate valued living trees. Confirm culture identity and cook harvested fruit bodies; never infer safety from the common name alone.