I was just pondering the idea of what are some good alternative plant badges for those of us in other areas of the world than Europe, and the U.K.? Since many of us do not have direct access to the European badges. What are some good alternatives both for plants similar to traditional plant badges, and for others which will look nice.

I'll start by saying I know that boxwood is a plant badge which is traditional, and available in the Rocky Mountains of North America.