Greenhouse Product News (GPN) is an award-winning magazine that consistently delivers the pertinent information growers need to be successful in the greenhouse. Published monthly, each issue of this tabloid publication features a bold, fresh look and is packed with the latest insights, products, perspectives and more.

Within the pages of GPN Magazine, readers discover:

Greenhouse Product News’ print issue is complemented with various digital resources, including:

In addition, GPN Magazine is the proud founder of the 40 Under 40 Awards, an industry-wide honor that annually recognizes 40 emerging leaders under the age of 40. The awards are held annually during Cultivate.

Great American Media Services also publishes:

Great American Media Services
75 Applewood Drive Suite A
PO Box 128
Sparta Michigan 49345 U.S.A
616-887-2666 Fax

The opinions and views expressed by authors, contributors and advertisers in Greenhouse Product News do not necessarily reflect those of the editors and publisher.  Appearance in Greenhouse Product News does not constitute endorsement by Great American Media Services or Greenhouse Product News of the advertiser, its products, or services. Great American Media Services and Greenhouse Product News accepts no responsibility of liability for the validity or accuracy of information supplied by contributors, vendors, advertisers, or advertising agencies. Great American Media Services and Greenhouse Product News do not make any claims or guarantees as to the accuracy or validity of information supplied by contributors, vendors, advertisers or advertising agencies.


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GPN recognizes 40 industry professionals under the age of 40 who are helping to determine the future of the horticulture industry. These individuals are today’s movers and shakers who are already setting the pace for tomorrow.

75 Applewood Drive, Suite A
P.O. Box 128
Sparta, MI 49345

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