Hi Carolyn -
Yes, stinging nettle is pretty much everywhere in North America. You may know it as "itch weed" depending on where you live.
I let a crop of it grow at the very back of my lot to harvest for dying fabrics.
Caution: read all about it first, and if you decide to harvest wear sturdy leather gloves. The tiny hairs on the stems and leaves can get into your skin and cause a reaction. (I harvest mine in long denim sleeves and gloves.)

Full disclosure - I have never made tea from it. If you decide to try it, make it according to directions you find online, and test a few drops on the inner skin of your forearm before taste-testing a small sample, to find out if you react adversely to it. Some people are allergic to it (uncommon) but you don't want a nasty surprise from something that is supposed to be helpful.
Sue