Peony not looking too good and moss?
So, in Fall 2010 I planted 5 Peonies in my yard, 4 came up the following spring. We had tons of rain that spring, the holes where the 4 that came up were full of standing water quite a few times. This spring only 1 peony came back. It only had one stem with leaves this time(last spring it had 2 or 3). No flowers this time either. Now it's pretty ratty looking...discolored with burnt edges on the leaves. There is this green carpet like moss covering the ground all over the base of the plant. Does anyone know what could be causing the moss and do you think I should plant it in another location? We have heavy clay soil and I'm in zone 6.
Thanks for any help!