The following are some advantages and disadvantages for using leaves as mulch. Based on your own knowldege and experience, feel free to add to this list.

  1. plentiful (pro)
  2. free (pro)
  3. looks and works better if partially ground and decomposed (pro)
  4. can blow away (con)
  5. can mat down when wet (con)
  6. matted leaves form a barrier that prevents air and moisture from getting to the soil below (con)