Has anyone grown this? I bought one last Fall when it went on sale and placed it in a temporary raised bed. I am considering planting a long row of these in the bed in front of my house but am worried about their cold hardiness. I've read that some have trouble keeping them alive in zone 6. Darn tag said zone 5 when I bought it. I'm up by Green Bay in zone 5a. It's such a cute grass but I obviously don't want to invest time and money into planting multiples if they're unlikely to make it to the next year. Any info/advice welcomed!

Thanks!