GPN is the best-read magazine in the industry.* Our award-winning editors consistently deliver the how-to, what-with information growers need to be successful in the greenhouse.
What’s more, GPN is the only industry publication that is 100% requested. What’s more, 94.1 percent of those subscribers grow, specify, approve or purchase products.**
Great American Media Services
75 Applewood Drive, Suite A
P.O. Box 128
Sparta, Michigan 49345 U.S.A
Phone: 616-520-2137
