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Depends on the grape. Some grapes, like table grapes, like it very hot. While others, like a wine grape, like it cool and coastal. Each grape depends on the type of soil, the weather, and the number of growing days. I live in the largest grape growing region of the United States the Central Valley of CA. We grow table grapes and have 100+ days in the summer. The vines are trimmed and pinned back in the winter and start to grow about April. They love the hot days of summer. In early fall they also begin the lay out the grapes to make raisins where they will dry on paper until they are totally dry and sent to Sun Maid Raisins.

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15y ago

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