A cold night can end a vineyard's decade
Vinifera vines die at temperatures Ontario reaches, so site selection is a bet about the coldest night in ten years rather than the average.
Section 3
Winter is the whole discipline
Winter kill, hilling up, and the −8°C rule. 3 pieces.
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Burying the graft union is routine labour here
Soil is ploughed over the base of the vine each autumn to protect the graft, and removed each spring. It is the single largest labour item.
Towers that mix the air on the coldest nights
Wind machines pull warmer air down onto the fruit zone during a radiation frost, and they are a capital decision made once per site.