Research Professional


John provides expertise in vineyard management and rearing grapevines throughout the entire lifecycle of the breeding program including: conducting cross pollinations, seed stratification, greenhouse planting, nursery establishment, and long-term vine care and maintenance.  An expert in viticulture, John has provided workshops on pruning, pest management, and winter injury to a national audience. John began working at the HRC in 2005.


  • Bachelor of Science, Biology
  • University of Minnesota-Duluth
  • Certificate of Apprenticeship in Grape Growing and Winemaking
  • Weingut Heinrichshof on the Mosel River in Germany in 2004
John Thull--cool dude