Ed Rosenthal

Ed Rosenthal

“Ed Rosenthal holds the distinction of turning more people on to pot than Cheech and Chong.” — Tommy Chong

“Mr. Rosenthal is the pothead’s answer to Ann Landers, Judge Judy, Martha Stewart, and the Burpee Garden Wizard all in one.” — The New York Times

Ed Rosenthal is the world’s leading expert on the cultivation of marijuana. In his more than forty years as the “guru of ganja,” he has written or edited more than a dozen books about marijuana cultivation and social policy that cumulatively have sold over two million copies. His “Ask Ed”® marijuana advice column ran in High Times for several decades and still appears internationally. One of his books on marijuana cultivation is the only book of its type to be reviewed by The New York Times.

Currently Rosenthal consults for commercial growers throughout the world, both independently and as a team member of Quantum 9, a cannabis consulting service. He is also on the faculty of Oaksterdam University, the leading trade school for the cannabis industry. His classes teach pupils how different techniques can be used to improve the yield and efficiency of their gardens. 

Beyond the garden, Rosenthal views marijuana law as a crucial social issue and has been active in promoting and developing policies of civil regulation. In 2003 he was tried in federal court for cultivation in a trial where the jury was not allowed to hear that he was deputized by the City of Oakland to provide marijuana for patients. His trial shifted public opinion in favor of state medical marijuana laws. He currently serves as the Executive Director of Green Aid: The Medical Marijuana Legal Defense and Education Fund.  Rosenthal has also served as an expert witness for federal, state, and civil marijuana cases for over thirty years.

Books by Ed Rosenthal include: Protect Your Garden, Marijuana Grower’s Handbook (2010), Marijuana Pest & Disease Control, Medical Marijuana 101, Why Marijuana Should be Legal, and The Big Book of Buds series.

Follow Ed’s blog: http://edrosenthal.com

Find Ed on Facebook: https://www.facebook.com/edrosenthal