It is my understanding that if one were to raise the soil level around the base of a tree that it will kill a tree.  I suspect that there has to be a limit to such for trees.   Let's say 6, 8 10 and 12" trees at the base.  How much could I raise the soil level around them and not kill them, if at all.


There is a portion of my lot that I would like to level out, but not at the expense of killing the trees.

Thanks in advance.

Every county and parish in this country has a USDA adviser.  Look up your local guy.  Or google on your local university that has an agricultural school.

You can also use landscape fabric and gravel to create an area for moisture to still get to the base of the tree. Check out some lanscaping forums and the like and you should be able to find some info on how to do i t.

And it depends on the variety of tree as well as the type of soil.