According to North Carolina State University's Department of Horticultural Science, blueberry blossoms and fruit are considered hardy, but temperatures below 28 degrees Fahrenheit can begin to damage certain types of blueberries, such as the highbush blueberry, when in full fruit. During the winter however, dormant flower buds have been known to withstand -20 to -30 degrees Fahrenheit.
About this Author
Naomi Judd, CIG, has been a writer for six years and been published in Tidal Echoes, Centripetal, The Capital City Weekly and Northwest.com. She has a self-designed Bachelor of Arts degree in adventure writing from Plymouth State University and is currently earning an Master of Fine Arts in creative writing from University of Southern Maine.