Anyone have experience with Micromeria Douglasii (Yerba Buena)? It's a trailing west coast native used to make a mint flavored tea. I've read that it's evergreen and hardy to zone 7, but I'm curious how it would do in a mid Atlantic zone 7 garden. I'd especially like to know how it would look in winter. I've seen quite a few plants that are root hardy, but are only actually evergreen in no freeze zones.