My last stem standing looks like it will fall any day now.I protected four plants this winter and after uncovering they were green and appeared ready to go. the one in the pic even pushed out a foot of leaf.one by one they have turned to mush,it seems this damage did not start until about april.one of my plants I have had for five years it always comes back and now it seems the whole matt is lost. Can anyone tell me where I went wrong.
This plant is rotting at the base under the soil,it is bright green and looks normal except its not growing.