Cold Hardiness & Climate Change

CGCN Resources

Cold weather remains an ongoing challenge for the grape and wine industry across Canada. While climate change is predicted to expand areas suitable for wine grape production in the country, more frequent extreme cold weather events through the year, including cold episodes lethal to grapevines are also predicted. Activities 5, 6 & 7 will explore methods to  reduce crop loss risks by increasing vineyard tolerance to extreme cold events through enhanced hardiness, crop protection technologies and improved cultivar selection. 

BC Grape Hardiness for Early December

BC Grape Hardiness for Early December

Posted Dec 10th, 2019

Grape bud hardiness reports for BC, Early December 2019

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BC Grape Hardiness for Late November

BC Grape Hardiness for Late November

Posted Nov 25th, 2019

Grape bud hardiness reports for BC, Late November 2019

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BC Grape Hardiness for Early November

BC Grape Hardiness for Early November

Posted Nov 11th, 2019

Grape bud hardiness reports for BC, early November 2019

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BC Growing Degree Days - September Update

BC Growing Degree Days - September Update

Posted Oct 18th, 2019

Growing Degree Days results for August for Summerland and Osoyoos.  

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Nova Scotia 2019 wine grape fall ripening report

Nova Scotia 2019 wine grape fall ripening report

Posted Oct 11th, 2019

climate and ripening report for the 2019 growing season in Nova Scotia  

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CCOVI tackling climate change challenges with research vineyards

CCOVI tackling climate change challenges with research vineyards

Posted Aug 29th, 2019

CCOVI partnered with two commercial grape growers to plant the St. Catharines and Niagara-on-the-Lake vineyards that are being used for a clone and rootstock evaluation program of the main VQA grapevine varieties in Ontario.

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BC Growing Degree Days - July Update

BC Growing Degree Days - July Update

Posted Aug 14th, 2019

Growing Degree Days results for April-July for Summerland and Osoyoos.  

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Another Type of Cold Damage

Another Type of Cold Damage

Posted Jun 27th, 2019

Pat Bowen and Carl Bodganoff of Agriculture & Agri-Food Canada explore grapevine cold damage occurring at above vine-lethal temperatures.

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BC Winter Grape Bud Hardiness results for Early April

BC Winter Grape Bud Hardiness results for Early April

Posted Apr 12th, 2019

Winter Grape Bud Hardiness results for Early April.  The hardiness levels were determined as average lethal temperature exotherms (LTE) measured on buds of several varieties by region collected on April 9th and 10th in the Okanagan Valley.

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Winter Hardiness Project Update

Winter Hardiness Project Update

Posted Mar 31st, 2019

Winter Hardiness update from Activity 7, March 2019

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Grapevine Bud Hardiness Testing

Grapevine Bud Hardiness Testing

Posted Mar 19th, 2019

Carl Bodganoff of Agriculture & Agri-Food Canada explores grapevine bud hardiness.

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From Our Team

  • CGCN certification will make a long-term contribution to the continuous pursuit of excellence of the Canadian wine sector by ensuring that the best quality, disease free propagating material is available to the grape industry.
    Hans Buchler, Chair of CGCN
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