Summerland RDC - Cold Hardiness and Assessing Bud Damage

Posted in Cold Hardiness and Climate Change

Summerland Research and Development Centre

Cold Hardiness - Assessing Bud Damage

Winter temperatures in the hills surrounding Kelowna and areas to the north dipped below -27 °C over the holidays. 

Average bud hardiness (LTE50 – the ambient temperature at which 50% bud kill can occur) for Vitis vinifera at that time ranged between -23 °C to  -25 °C.  Widespread winter bud and vine damage is unfortunately to be expected. 

Below is a brief prepared by Carl Bogdanoff outlining ‘How to assess winter bud damage’.  It also provides some tips on pruning in response to winter damage.

Click here to view the brief

From Our Team

  • Having a clean plant program in Canada will allow growers to replant vineyards with healthy domestically produced vines to maintain the long-term viability of their vineyards.
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