In article , Martin Sykes
writes
"Alan Gould" wrote in message
...
Greater tree/bush height relative to the surrounding landscape gives
certain breeds of bird more incentive to nest in those hedges.
--
Alan & Joan Gould - North Lincs.

So a 5ft hedge on a 1ft bank is no better than a 6ft hedge on flat ground?

The 1ft bank would give you better drainage if your ground is boggy in
winter. Otoh it might be too dry for the hedge if you're free-draining
anyway.

What it would give you is a good habitat for primroses, dog violets,
wild strawberries and so on.
--
Kay Easton

Edward's earthworm page:
http://www.scarboro.demon.co.uk/garden/