Stop bush roots coming through

I have a border down one side of our garden. There’s a bush that runs alongside the back of it. The problem is the small roots of the bush keep coming up in the border. I would like to plant some plants in the border but every month or so the roots keep coming up. Is there a way I can stop the roots without killing the bush?

I though about digging a small trench between the bush and the border and putting some weed killer to stop the roots coming through but I’m worried it might have a bad effect on the bush.

Any suggestions would be great, thanks.
Oliver

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1 Comment To "Stop bush roots coming through"

#1 Comment By Downtoearthdigs On 10/17/2016 @ 3:50 pm

There are some barrier products on the market that can be placed into the ground to keep roots from invading areas. Since you all ready have the roots invading into the surrounding area, I’m no sure how successful this type of system would work for you and the work to dig and install can be extensive.
There is little to be done other then removing the troublesome shrubs and replanting with something more well behaved.

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