I am so sorry I do not know
It has been in my garden 8+ years and was most likely a rescue with no tag
I have a tendency to do that kind of thing.
It has a nice deep color and is rather a small flower 3-31/2 ''
Blooms a bit later than most of my others . They have been blooming for a week now and this one still only has buds. But that may be to placement , It is in a part shade bed.
