I am about to erect a fence close to a 12 feet high beech tree hedge.
It involves digging a holes about twelve inches deep and 8 inches in
diameter between the trees that are about 2 feet apart. I think, doing
this will damage some of the roots so, is it likely to effect the
health of the trees. The reason i am asking this question is a friend
of mine said there was a bit of a risk to the trees erecting the fence
at this time of the year and that it would probably be safer later in
the year when the trees were dormant.

THANKS
ALAN