40 Under 40, Class of 2015

Rebecca Siemonsma


SHS Griffin

Job Title

Regional Sales Representative, Lisle, Illinois/Brookings, South Dakota


As the tech services manager for a breeding company, she worked closely with growers in North America, Europe and Asia offering technical advice in all cultural aspects of product lines. Involved in the development of poinsettia tech support tools like online bulletin boards, webinars and web-based graphical tracking software.


Can’t Live Without: Rebecca HAS to have her coffee in the morning.

Fun Facts

Movie Classic: “Fargo.” “It’s very dark humor, but if you’ve ever spent any time in the Dakotas or Minnesota this movie depicts culture here perfectly.”

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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.
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Melissa Maguire
Cole Mangum
Oz Marshall
Meagan Nace
Tiffany Nohl
Chris Plane
Mike Prol