On 24/03/2014 15:14, Martin Brown wrote:

You mean it washed away the old fence?
You might be best off with fresh willow sticks then!

That's assuming a lot.
I have a hedge of Berberis Thunbergii as the side of a roadway leading
to a works, 4 ft from it on the other side is a stream, but it's 5 to
6ft lower than the hedge.