'Obsession' was added to my garden in spring 2007. It's a sport of ‘Sparkling Burgundy’ and has slightly shiny medium green leaves with a darker green margin in a small mound. My 'Obsession' never became an obsession with me. My plant never showed any signs of the darker margin mentioned above - not so sure that's an accurate description. I divided it in 2012 and took most to plant sales but kept a couple divisions. One of those divisions I kept in a pot through 2015, but I found I still wasn't very excited by it and last autumn, I divided it up for plant sales. This one is now gone from my garden. If you've got good pictures please feel free to share them.
June 21
July 25
Aug. 13