Digging up Spearmint

About 7 pm I decided to go out and dig a little bit the part between raspberry bush and where butterfly bush used to be. Spearmint has spread all over there and I need to get rid of it. Halfway thru I pulled up some perennial that I must have planted last fall. I have no recollection of it. Resolved to record things I do in the garden in more detail. Kept digging until it was too dark to see the roots I need to pick out.