Led by David Gold (author of The Complete Cannabis), these comprehensive, open lectures cover everything you need to know to produce top-quality medicine on your own. From organics to hydroponics - learn everything about nutrition, ventilation, light cycles and pest control. Classes are offered every Sunday from 2pm to 6pm. The first hour is to cover the basics of growing, a great place for beginners. The advanced portion of the class is from 3pm to 6pm. Come when you want and stay as long as you want, learn all you can. Make an appointment by calling (510) 533-0146 or sign up on your next visit.