Can anybody tell me what the characteristic root depth for a Dogwood
tree is ?

If this is the incorrect NG to use, perhaps somebody can suggest a
proper NG.

Reason why I am asking this question is that I just had two overflow
pits located and stack pipes installed on each one. The guy did not
want to put any chemicals in the overflow pit that is close to the
Dogwood tree. The overflow pit is at least five feet below grade.


Thanks.