Click the link below to check if your USDA Plant Hardiness Zone assignment has changed; search by zip code. Half of the USA has been reclassified. In 1990 Ashland Oregon was Zone 7b: 5°F to 10°F, but in 2023 Ashland is now Zone 8a 10°F to 15°F. Knowing your zone is important for plant survival in your area.

https://planthardiness.ars.usda.gov/

Below is a link to ‘A Way To Garden’ interview with Todd Rounsaville, USDA horticulturist and research scientist, where he explains this new USDA Zone map.

Below is a link to an Interesting 2018 article from Yale Environment 360 on how fast climate zones are shifting.

https://e360.yale.edu/features/redrawing-the-map-how-the-worlds-climate-zones-are-shifting