A neighbor gave this to me but she does not know what it is. It has a licorice smell and she says it can be used in salads and but it is invasive. Before I plant it ( or eat it ) I want to know what it is. Any help will be appreciated.
frostweed - This does look something like the purple plant "Red shiso - Perilla frutescens" in your link. It also looks very much like the Perilla 'Gage's Shadow' in DG at http://davesgarden.com/guides/pf/go/135939/ . However, the DG listing says that "All parts of plant are poisonous if ingested," so it must be the Perilla frutescens. I'll keep this open a day or so just for confirmation.