Black Cohosh (Actaea racemosa)

I planted 3 of these in Spring 2020, and they seemed to do very well in my too clay-like soil Then 1 of them just died, and I didn't figure out why, but it dried up and died very quickly, but the other 2 are doing well. A rabbit bit off one of them, so I put a chicken wire fence around each to protect them, and the one the rabbit bit came back very well. North side of house and gets afternoon sun.