I planted 2 last spring. They made it fine thru the hot summer, then one up and died. Then this year, the SAME thing happened with the other one (happened about 3 weeks ago). I tried to save them, but it was like they were diseased or something. Last summer, I cut the dead one back, but did not pull it up. It never came back. I'm following the same procedure this summer, but I'm sure it's gone. Maybe somebody can tell us WHY! Guerry