So locations at at or near a zone border
Take that into account when researching or gardening
Just an FYI
Also, when researching start first with your state’s land-grant University depts plus their state and local Extension offices
You can rely more on their fact sheets, tips, research etc that often is written for the layman, and is peer reviewed.
Those typically won’t come to the forefront on search engines (the businesses that pay for top positions will) so add your Extension county and/or land grant .edu to your search.
Our local cooperative extension office has a lot of good information. Thanks for the advice.