bed around tree - will it damage the tree?
I have contracted to have my front yard landscaped. They have not
started work yet, being busy on other projects, but now I am having
some serious reservations about the design, and I wonder if I should
change it before they start.
The issue is the tree in the front yard. It is a pin oak, probably
about 20 years old. It is a nice healthy tree; I don't know how tall
it is but it is about 18 inches in diameter.
The proposed design includes a lozenge-shaped bed around the tree,
about 24 feet long and 14 feet in diameter, kind of like a berm with
the tree on one side.
The edging for the design is stone blocks. I want this edging as it
will match all the other beds in the yard But to put this edging in,
they have to dig a trench around the tree. The trench will be maybe
8" deep? They put in a bed of gravel and then concrete the blocks
in. At any rate, installing it will involve cutting some of the
surface roots all the way around the tree.
I'm worried that trenching around the tree will damage it. I would be
really upset to lose this tree; I lost both my back yard trees
(maples), one to ice and another to wind, so this is the only large
tree on the lot. And it has had a bit of a rough year so far; a big
wind storm blew off many of its new leaf clusters, and it is only now
getting around to replacing them.
The landscape designer said it would not significantly damage the
tree, as the tree roots go as deep into the soil as the height of the
I think these landscapers are good. They did my back yard last year
and they did a nice job; they are certainly not the cheapest option.
So I think they know what they are talking about, generally speaking.
Still, I have reservations - after all, ultimately, I'm the only one
who really cares about the fate of this tree.
So, my question - would trenching around this tree damage it