Board of Directors

  • Roy Markwardt

    I grew up as a third generation avid gardener. Being a farmer was a natural extension for pursuing my love of the land and an appreciation of what it can…

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  • Aaron Koppes

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  • Ann Grochala

    Ann is a master gardener who spent most of her career in finance in the Washington DC area and returned to Iowa in retirement. With parents and grandparents who had…

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  • Gary Nyhus

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  • Andy Johnston

    Andy lives in Mason City and joined the Board in 2017.  He is excited to be a part of an organization tasked with adding beauty and recreational opportunities to North…

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  • Becke Dorenbush

    Becke has enjoyed bringing friends and family to Central Gardens since its inception.  Becke remains active in the Iowa Dental Hygienists’ Association for which she serves as the Corporate Relations…

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  • Barb Nicholas

    Barb Nicholas, Clear Lake, is the Gardens “plants manager” and one of the charter board members of Central Gardens. She retired from nursing to devote more than full-time to taking…

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  • Troyce Fisher, President

    Troyce has been the president of the Central Gardens Board of Directors for three yeras now and is grateful for the patience of other board members and volunteers who teach…

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  • Connie Plagge, Vice President

    Connie Plagge of Clear Lake joined the Central Gardens Board of Directors in 2013, and became board vice-president in 2016.  She began volunteering at the Gardens shortly after retiring from…

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  • Jim W. Kuhlman, Treasurer

    Jim W. Kuhlman of Mason City joined the Board of Directors in 2002 and has served as treasurer of the Board since 2005.  He retired from the Iowa State University…

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  • Donna Dull, Secretary

    Donna Dull of Clear Lake, retired after teaching kindergarten for 41 years and then decided to take part in some community activities that she had been unable to join before…

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  • Bob Rennebohm

    Bob Rennebohm is a summer resident of Clear Lake.  He joined the Central Gardens Board in 2014.  Bob is a Registered Landscape Architect with over 45 years of experience in the…

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  • Linette Heydt

    Linette Heydt of Ventura connected with Central Gardens soon after her family moved to the area, because their daughter wanted her wedding in a garden. That was in 2008 before there…

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  • Gail Harringa

    Gail Harringa of Clear Lake has been a board member since 2001.  Most of Gail’s contributions as a board member have been spent promoting rental spaces and supervising events, with weddings…

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