A. Harding "The peony"
"In borders, holes two and one-half feet in depth and three feet in diameter can be made, and filled with rich top soil carefully mixed with well-rotted manure."
About trenches for peonies...
"The dimensions are one hundred feet long by sixteen feet wide by two feet nine inches deep.....The subsoil was a solid hard pan and had to be loosened by pick, as dynamite could not be used for fear of disturbing existing tile drains.This trench required the labour of four men for twenty-six working days."
We all have a way to go!
