Lamium is my favorite plant and I was so glad to see your article on the different varieties. It brightens up a shady area and the blooms are lovely. I'm in Oklahoma, zone 7, and have it planted all over in shady areas. In most of the areas, it's actually an evergreen and I've even seen it blooming in the dead of winter! It IS quite prolific but easy to control with a few snips or dividing. I've been replanting it for years in my gardens and it's withstood even the toughest winters!