
In the Viewing profile window, click on Edit profile next to your username. Next, type your city (or town as the case may be) and state (or country if you live outside the US) in the location box. If you live in the US, add the USDA Plant Hardiness Zone number to your location -- this can also be helpful to know. Then click on Submit, and you're done! By the way, if you need to determine your Hardiness Zone number and/or you'd like to know what those numbers mean, go to this link:
https://planthardiness.ars.usda.gov/pages/view-maps
Your basic location info will appear on the left side of your posts. If you also put it into your signature, it'll be visible to people on a mobile device. The keyword here is "help" -- when you do this, you'll be helping others and yourself too.