Grape King

The Grape King represents a 66-year tradition in Ontario’s grape and wine industry that dates back to 1956. The title of Grape King, or Grape Grower of the Year, is bestowed upon an Ontario grape grower who exemplifies excellence in the vineyard.

Nominees for Grape King must have a working knowledge of vineyard management and the grape growing industry. Nominated vineyards are judged by industry experts from the Ontario Ministry of Agriculture, Food and Rural Affairs, and the University of Guelph. They are rated on a point system based on the following criteria: Cultivars, Diseases, Insects, Weed Control, Soil Management, Canopy Management, Overall Quality of Vineyard, Outreach, and Miscellaneous.

The Grape King is an ambassador and an advocate for all grape growers across Ontario as the grape and wine industry continues to move forward.


Jamie Slingerland (2015-2016)

Jamie grew up on a Niagara-on-the-Lake grape and tender fruit farm coming from a long line of fruit farmers. In fact, the Slingerland family has farmed in NOTL since the 1780s. As a result, Jamie understands firsthand that great wine starts in the vineyard.



Jamie’s marriage to Connie Pillitteri, daughter of Pillitteri Estates founders Gary and Lena Pillitteri, was a winemaking match made in heaven. Today, the award-winning vineyards of Pillitteri Estates managed by Slingerland, account for Canada’s largest estate winery production of Icewine. The business is a true family affair. Working side-by-side with Gary and Lena are Jamie, Connie (CFO), son Richard and son-in-law Jared Goerz (both on the management team). Jamie’s daughter Rachel is a lawyer. Jamie’s Grape King honor is especially notable, considering that his father-in-law Gary Pillitteri was Grape King in 1981.

After graduating from the University of Guelph, Jamie worked as an inspector for the Ontario Ministry of Agriculture, Food and Rural Affairs; and later served on NOTL’s Court of Revision and Committee of Adjustment. His long history of service includes serving as inaugural chair of NOTL’s Agricultural subcommittee, which established a comprehensive zoning bylaw and an irrigation system for local wineries. He also was instrumental in transitioning the many individual winery signs that used to dot the Queen Elizabeth Way to today’s consistent and recognizable “Wineries of NOTL” signage.

Among Jamie’s other honors was the 2012 Premier’s Award for Agri-Food Innovation Excellence, which he received for introducing the three Verona grape varieties to Canada, and shortening the period to establish new varieties and clones.

Members' Toolbox

Resources for grape growers


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