This struggled for a while. It really does not like my soil, but then nothing does really, except perhaps for the Hostas.
Once it took hold, It did OK. This really needs to be staked. If you don't, it lays itself out into a great mass like a caped woman collapsed in the grass. If you had a big space this might be fine allowed to sprawl. It is with plants like this that I wish I had a nice Yew hedge. I would clip it into a niche and grow this in the space. Yew makes a nice dark background to diplay a specimen in front of. The problem is, I am a collector, and have many specimens with no frame. That will change over the years as the garden develops.