About Ed Rosenthal

“The Guru of Ganja”

Ed Rosenthal is a leading cannabis horticulture authority, author, educator, social activist and legalization pioneer.

As one of the co-founders of High Times Magazine, Ed writes the much loved and long-running cannabis column, “Ask Ed.” The column continues to be published internationally. 

Educator and Author

Ed Rosenthal’s Marijuana Grower’s Handbook, has become the definitive marijuana cultivation resource, inspiring millions to learn the best marijuana cultivation techniques. His book is the official course book of Oaksterdam University, and is still the only cannabis horticulture title ever to be reviewed by the New York Times.

Marijuana innovator

Ed is the founder of many successful socially responsible cannabis organizations, including; Quick Trading Publishing, focused on continuously researching and publishing the most accurate, up to date cannabis education,  Quantum 9, a marijuana consulting and technology company, Green Aid: The Medical Marijuana Legal Defense and Education Fund, a 501(c)(3), the International Cannabis Business Conference, the Wonders of Cannabis Festival and The Hash Marihuana & Hemp Museum in Amsterdam.

cannabis activist and advocate

As an internationally known cannabis activist and advocate, Ed views marijuana law as a crucial social issue: one that hit him personally.  In 1999, Ed was appointed, “Officer of the City of Oakland”, directed to cultivate cannabis for patients. Three years later, the federal government shut down his city supported facility. Ed was arrested, and put on trial twice for marijuana cultivation in federal court. Ed’s highly publicized trials shifted public opinion in favor of state medical marijuana laws, highlighting for many the fact that marijuana laws have become more harmful to society than the behavior they were intended to regulate.

 
 Ed is the expert pot grower who holds the distinction of turning more people onto pot than Cheech and Chong.  –  Tommy Chong

Ed is the expert pot grower who holds the distinction of turning more people onto pot than Cheech and Chong.

Tommy Chong

 "As accessible a study of a single plant, at this high level of seriousness, as one is likely to find. Proponents of marijuana have, in other words, just been handed an unexpected argument. After legalization, elementary botany classes could use this guide as a casebook for leaning about a common plant." – 1978, New York Times review of Marijuana Growers Guide

"As accessible a study of a single plant, at this high level of seriousness, as one is likely to find. Proponents of marijuana have, in other words, just been handed an unexpected argument. After legalization, elementary botany classes could use this guide as a casebook for leaning about a common plant." – 1978, New York Times review of Marijuana Growers Guide

 “Ed Rosenthal has always been an out-front marijuana legalization advocate, someone willing to push the envelope, often at some personal risk, to achieve social change.” – Keith Stroup; Founder,  Norml

“Ed Rosenthal has always been an out-front marijuana legalization advocate, someone willing to push the envelope, often at some personal risk, to achieve social change.” – Keith Stroup; Founder, Norml