What caused mound of soft dirt around dying hosta?
We planted a hosta near base of house 5 years ago. Now the hosta sits on a soft mound of original dirt (approximately 6-8 inches high) and the hosta appears to be dying. What caused the mound of soft dirt? No other signs of voles or moles. No trenches or apparent run-ways. Surrounding hostas appear normal.
Ants may have caused the mound, animals may have. To investigate dig up the hosta and inspect the area for tunnels or other evidence of digging or tunneling.
If the hosta roots have not been eaten or rotted, it should survive if it is transplanted to an area that does not have animal or insect activity. Hosta are amazingly tough plants.