Moving from Zone 6a to 6b is only a shift of 5 degrees warmer. The a’s and b’s are recognized as half zones. When plants are listed for sale, the half zones are not used.

View this 3 bedroom, 2 bathroom rental house at 6B Heather Court, West Albury NSW 2640. Available from Thursday, 30 November 2023. Contact agent for price.

On the revised 2023 map, about half of Ohio is in Zone 6b, where the average low temperature range is -5 to 0 degrees Fahrenheit. The other half of Ohio is now in Zone 6a, where the average low ...

Detroit's zone didn't change from the 2012 map, remaining Zone 6b, an extreme minimum winter temperature of minus 5 degrees to zero. But the 6b zone expanded farther north into the Detroit suburbs ...