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Colorado Law on Psilocybin Mushroom Cultivation

Updated February 21, 2017

The National Drug Intelligence Center reports that psilocybin mushrooms are the most common hallucinogen in Colorado. Two species exist: Psilocybe mexicana and Stropharia cubensise. Boulder was a "hub" for psilocybin distribution in Colorado and the western United States for years, until 2002, according to NDIC.

Physical Effects

When you eat psilocybin mushrooms, the effects vary depending on the dosage. Within 30 minutes of consumption, nausea and vomiting can occur, along with drowsiness, flushing, enlarged pupils, perspiration and loss of coordination. Changes to vision and touch can occur and colours often appear brighter.

The Law

Kits that allow you to grow psilocybin mushrooms are legal in Colorado: they are available from various counterculture groups and many Colorado residents grow these mushrooms. However, psilocybin possession is a felony in all of the United States, under Title 21, Section I, (C) of the United States Code (1970 Edition). If you had a large-scale cultivation operation, you would be prosecuted for "intent to manufacture psilocybin."

Penalties for Cultivation

When a person is arrested for psilocybin cultivation with the intent to distribute the mushrooms for sale, it is a class-4 felony that can result in four to 12 years in prison and/or a fine up to £487,500. First-time offenders can receive lighter sentences than those who have been arrested for similar offences in the past.

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About the Author

Barbara Fahs lives on Hawaii island, where she has created Hi'iaka's Healing Herb Garden. Fahs wrote "Super Simple Guide to Creating Hawaiian Gardens" and has been a professional writer since 1984. She contributes to "Big Island Weekly," "Ke Ola" magazine and various websites. She earned her Bachelor of Arts at University of California, Santa Barbara and her Master of Arts from San Jose State University.