from Ireland . It has taken a few years for them to bulk up , but they are wonderful just now.
I believe they are short lived , but they are good self seeders , maybe too good . Pulled out easily enough and plenty to give away or relocated .
They are a woodland grass from Europe , but I found they survived my dry sunny garden without being scorched to badly. I've planted them in the shadiest spots I could find.
and here with another great self seeder Rumex sanguineus.