This is an easy guide for beginners, and will provide the basics for growing quality marijuana, giving the grower a strong foundation to later incorporate their own personal styles to the grow process. The following information has been compiled by Colorado growers and is intended for Colorado-specific growing and environmental conditions. Most of the climate information should also apply to Montana, Idaho, Wyoming, and Utah. New Mexico and Arizona are very arid, but this knowledge should be fairly easy to apply to a dry climate. Folks in these states will be able to benefit from this book. This book is the compilation of years of experience growing marijuana and visiting, operating, and designing Hundreds of grow rooms.