Some types of blueberry plants can survive temperatures as low as -30 degrees Fahrenheit. As new buds develop in the spring the blueberry plant's cold tolerance lessens so that temperatures of approximately 20 degrees Fahrenheit can cause frost damage. Damaged buds do not open and may appear wilted or brown.
About this Author
Jessica Alzarana has a Bachelor of Music in music composition from the University of North Texas, and is currently pursuing a graduate degree in music therapy from Texas Woman's University. Alzarana's essays have been published by UNICEF State of the World Children's Report, BootsNAll, Alarana Atelier, eHow, and Travels.