On Feb 19, 9:52*am, Norminn wrote:
On 2/19/2013 9:36 AM, DerbyDad03 wrote:

On Feb 18, 6:30 pm, cj wrote:
I would like to built a small raised flowerbed (knee high) around the
base of a mature oak tree. My question is having the dirt in contact
with the tree bark going to harm the tree?

Thanks, CJ

See here...

http://www.forestryimages.org/images...12/1361174.jpg

That setup might interfere with nutrients/water getting to the roots.
Some trees have shallow root systems and I think they would be more
bothered.

I think that's a valid point. I would think most of the nutrients
are in the upper part of the soil. After you go down 18" or
2ft I wonder how much there is?