My mystery plants are hostas! They had to have gone dormant last year because I never would have planted my chives where they are if there were hostas there. In fact, i moved ALL my hostas to beside the shed (and a couple in front of the house). My chives are planted one foot apart and between them sets a hosta! Just one of those white-edged, green ones. So I'll have to transplant them both later this week. Whew! Lots to do! I have to finish the chicken pen, too.