This lovely little plant is a member of the mint family and is native to Europe. Here it's a nuisance in every state.
I read that this was a good bee plant, providing lots of nectar. So I had a little nibble of a flower or two. Sweet and delicious!!
According to Linnaeus, purple deadnettle was boiled and eaten as a potherb in Sweden. It was also used as an herbal remedy to induce sweating and stop bleeding. Some herb companies will sell you a packet of seeds to plant, calling it "Purple Archangel." Shouldn't this be illegal?