Chill hours for fruit trees.
What temperature is necessary to reach a chill hour? What resource is available to determine the chill hours in a specific region? How can we find out the chill hours needed for different fruit trees?
Chilling hours usually refers to the number of hours of exposure to temperatures between 32 and 45 degrees F. Your local weather service and/or cooperative extension service should be able to help you determine how many hours of chilling to expect in your locale. The cooperative extension service also usually has lists of fruit varieties suited to your region.
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