Should I use soil amendments when planting a Japanese Maple or Conifer?
The general rule is if your are planting just one tree and can not
amend to the drip line of the plant when it is fully m3ature, then you
should not amend
the soil. If you are preparing a bed large enough so that the ground
would be amended past the drip line of a mature plant then go ahead and
amend the soil and raise the bed.