Hawaii Cannabis Expo

The Biggest Annual Medical Marijuana Show

Dan Lubkeman – Mainland Medical Marijuana: Highs and Lows

1 min read

President of the Hydroponic Society of America & Gerald Garrison, Green Applied Sciences Dan Lubkeman is the President of the Hydroponic Society of America. His 30 year career has been in hydroponic controlled environment growing , as well as teaching and consulting on plant science, photobiology, grow-room dynamics, risk management and more. He has also written for several industry magazines and has edited books for cannabis growing authors like Ed Rosenthal and Jorge Cervantes.


The Hydroponic Society of America (HSA) is a 501c3 non-profit organization, formed in 1976, that works with scientists, researchers, teachers, students, commercial growers, hobbyists and others. The HSA has the world’s largest knowledge database related to hydroponics, controlled environment agriculture, and sustainable indoor food production. The Society brings a wealth of information, knowledge, experience, cutting edge research and education for food and cannabis grower.