Species library › Psilocybe › Psilocybe jacobsii
Fungi Little published: much of this is inferred from related species

Psilocybe jacobsii

Psilocybe jacobsii is a Mexican Psilocybe described by Guzmán from collections by James Q. Jacobs near Huautla de Jiménez in the Mazatec region of Oaxaca. It contains psilocybin, which is a controlled substance in many countries; check local law before cultivating. Its habitat is not documented, so conditions are inferred from the region's montane forest.

At home, aim for
Day IntermediateTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity Very humid airBand in Plantistry
Light Dappled lightDLI and PPFD in Plantistry
Expects a seasonal rest

Where it grows wild

Collected in the Mazatec highlands of Oaxaca, a region of montane cloud and pine-oak forest; substrate is not documented.

Huautla de Jiménez lies at roughly 1500–1800 m; exact collection elevation is not documented here.

OaxacaMexico

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app.