oh I like that Landini, may have to look for that. I tried the black columbine and it died. Did not come back the following year and didn't seed either. I just assumed that the seeds were sterile for that one.
I do have a small clump of the black mondo grass but it is so short it is hardly noticeable really in the garden as a whole. Would be nice in a pot I think. Mine does grow really slow. I cannot recommend it as a garden plant for those reasons.