Ed Rosenthal (born Bronx, New York, 1944) is a California horticulturist, author, publisher, and Cannabis grower known for his advocacy for the legalization of marijuana use. He served as a columnist for High Times Magazine during the ’80s and ’90s. He was arrested in 2002 for cultivation of cannabis by federal authorities, who do not recognize the authority of states to regulate the use of medical marijuana. He was convicted in federal court, but the conviction was overturned on appeal. Rosenthal was subsequently convicted again, but was not re-sentenced, since his original sentence had been completed. Rosenthal briefly attended Youngstown State University in Youngstown, Ohio.
Rosenthal has been active in promoting and developing policies of civil regulation for medicinal marijuana. With the passage of California’s pioneering Proposition 215 in 1996, which authorizes medicinal use of marijuana, he worked with the state and local governments to implement the delivery of pharmaceuticalgrade cannabis to patients with a doctor’s recommendation to use marijuana.Rosenthal is also the author of numerous books about the cultivation of marijuana.