Yucca Color Guard, begonia Benitochiba, euonymus Emerald 'n Gold, black mondo grass, heucheras Southern Comfort & Obsidian. Aside from the begonia, these are all evergreen, so the pot should look good much of the winter.
Oxalis triangularis Photo: Annie’s Annuals & Perennials - It prefers shady, cool, and moist conditions but is remarkably tough. This grows in Rebecca's shade perennial garden