Cannabis Grower's Handbook

“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“Cannabis Grower’s Handbook is like the latest iOS update, giving you the best information that builds on prior knowledge.” – Leafly.com“A very comprehensive work addressing every aspect of growing marijuana or hemp…. This book offers basic steps on how to start home growing year-round. Rosenthal pays meticulous attention to key advances and the latest technology applicable to both small and large gardens…. The verdict: Rosenthal has compiled an encyclopedic and up-to-date treatment of this developing topic, leaving no stone unturned.” – Library Journal“Ed’s books have been every grower’s go-to textbooks when it comes to growing goodpot, combating diseases, thieves, and other pests that could waste an entire growing cycle.” – Tommy Chong“Oaksterdam University and over 50,000 alumni from more than 40 countries have relied uponEd Rosenthal as a trusted resource for horticultural textbooks. It is only natural that mainstream universities follow suit and source the best, as we did.” – Dale Sky Jones, Oaksterdam University Executive Chancellor“I have used Ed’s books since my first grow in 1975 and have relied on Ed’s vast knowledge and foresight ever since. When it comes to the future of cannabis, Ed always calls it right.” – Tim Blake, founder of The Emerald Cup“Ed Rosenthal has inspired more cannabis growers (myself included) than anyone on the planet. Ed’s books are responsible for my first venture in cannabis horticulture 25 years ago and every new edition still becomes a cornerstone to every new garden. Ed’s books are essential reading for newbies and savvy growers alike.” – Guy Holmes, Founder and publisher of Grow Magazine“Ed Rosenthal has taught millions of people around the world how to grow cannabis organically either as hobbyists or as members of the cannabis industry. Ed is always on the leading edge of what growers need to know in order to grow and enjoy amazing cannabis.” – Julie Chiarello, editor-in-chief of Skunk Magazine“WARNING: Do not lend out this book, you won’t get it back! If there is an OG of cannabis, it is Ed Rosenthal.” – Jeff Lowenfels, author of Teeming with Microbes

Ed Rosenthal is the world’s leading cannabis horticulture authority, author, educator, and a pioneering legalization activist. As one of the cofounders of High Times Magazine, Ed writes the much loved and long-running cannabis column “Ask Ed,” which is published internationally. Ed Rosenthal’s Marijuana Grower’s Handbook has been the definitive resource for cannabis and hemp cultivation, inspiring growers, innovators, breeders, and enthusiasts worldwide. Ed has advocated for cannabis law reform for over 50 years. He was a key member of the coalition that passed the world’s first legalization laws in California in the 1990s and continues to advocate internationally. Ed resides in Oakland, California.

Dr. Robert Flannery holds a Ph.D. from UC Davis in Plant Biology with an emphasis in Environmental Horticulture. He has specific expertise in hydroponic crop optimization for cut-flower production. He is the first person in the United States applying the technical training acquired through his doctoral degree to commercial cannabis cultivation. Dr. Flannery is CEO of Dr. Robb Farms, a premier California cannabis company with operations throughout the state.

Angela Bacca is a writer, editor, and journalist who has covered cannabis cultivation, medicine, genomics, economics, politics, research, and culture in magazines and online. She has a BA in Journalism from San Francisco State University and an MBA from Mills College Lorry I. Lokey Graduate School of Business. Angela Bacca is the editor and project manager of Cannabis Grower’s Handbook as well as of the 2010 edition of its forerunner, Ed Rosenthal’s Marijuana Grower’s Handbook.