Did you know the U.S. Department of Agriculture updated its plant hardiness zones a few months ago to reflect more data, more current data, and more accurate data from added weather stations?
OregonLive.com has created a plant zone lookup tool that accounts for the USDA’s recent update of the zones.
You can type in your ZIP code for Oregon and Washington and find your zone to see if your zone has changed.
The zones identify average extreme minimum temperatures and help gardeners determine which perennial plants are most likely to thrive, according to the USDA.
Did your USDA plant hardiness zone change?