Apple Tree Chill Hours

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Apple Trees: Chill Hours Chill hours are defined as the number of hours below 45F (7C) but above 32F (0C) that your tree will experience in a given calendar year. Most apples trees need at least 1,000 chill hours each year. That’s around 42 days or 11% of the available days or hours in a … Continue reading Apple Tree Chill Hours