life span of feather grass?
I'm curious about the life span of feather grass (Nassella tenuissima -- Stipa tenuissima) -- does anyone know how long-lived it is? I know it self-sows readily but am wondering how long an individual plant might last. I thought I read somewhere it's relatively short-lived but can't find specific information. I have half a dozen plants and really enjoy it; just want to be prepared.