Cabarrus County is in what USDA zone?
Zone 7b. This means a minimum temperature of 5-10 degrees can be expected during the winter. (Probabilities might be more meaningful but haven’t been accurately calculated. Many gardeners remember the -8 in Jan 1985. I guess the probability of -8 is less than 1%. 0 degrees is close to 5%. The 5 to 10 degrees is probably close to 20% or once every 5 years.
