What Are Chill Hours For Fruit Trees
What Are Chill Hours For Fruit Trees . A chill hour is equal to one hour that a fruit plant or tree spends in cooler temperatures ranging from 45 to 32 degrees fahrenheit. Fulfillment of chilling hour requirement. Understanding importance of chill hours for fruit trees from www.pressdemocrat.com The “below 45” standard is what most. Dormancy begins in late fall and lasts into early winter. The table below provides average chill hours and the range of chill hours for the last 14 years (as of 2016) from the cimis active sites in contra costa county.