The soils are humic or loamy, well drained and acid  with a pH of 5.5 – 5.8; the moss, Ditrichum cornubicum or Cornish path-moss (a moss endemic to Cornwall, United Kingdom), likes a metal-rich substrate with concentrations of copper of 151 – 1400 parts per million (ppm).
The soils are humic or loamy, well drained and acid  with a pH of 5.5 – 5.8; the moss, Ditrichum cornubicum or Cornish path-moss (a moss endemic to Cornwall, United Kingdom), likes a metal-rich substrate with concentrations of copper of 151 – 1400 parts per million (ppm).