Nice... how much sun/shade you giving it? I tried one years back and it struggled for a few years before disappearing.

Mine spreads in this place but I have tried it in other places and it also disappeared This is shade and sheltered.

My understanding is that it needs shade to deep shade and moisture in the summer. Without moisture in particular, it will disappear. I just got one tonight. Excited to give it a go in my Z9 garden! (Will need to make sure I give it more water than we typically get in the summer here).