Do Okanagan vineyards use special root stocks for their vines?

In the Okanagan, and other grape-growing regions across North America, grafting is a popular practice to optimize vine health and yield. Optimal rootstock selection depends on environmental factors such as soil type, pH levels, frost resistance requirements – in addition to considering pests/disease susceptibilities specific for each variety of grape grown. To this end there are several types of rootstocks available that have been adapted specifically for use with local varieties: these include Riparia Gloire and 420A amongst others; enabling growers to take full advantage of what their natural environment has to offer.

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