Posted: 25/01/2013 at 19:05
Hi Joe,
I thought I'd replied to your response above but mustn't have pressed the right button.
Yes you are perfectly correct in your analysis and we do own the woodland area at the back so there is no problem with access to the top except we'll have to abseil down the slope if we want to do any work on most of it.
I received a sample of some membrane that can be put down but it isn't very flexible and works out at around £200 for the minimum amount, so we plan to try to tackle it more simply. I have a list of some good ground cover plants that might help and thought I might slide a roofing slate into the bank to support them. Do you think that might work?
Alternatively we read something about 'socks' which are tubes of hessian that you fill with compost, stake them above and below along the contours to hold them in place and either seed into them or plant above the tube. This would come free as I have a roll of hessian and a sewing machine!
We have time for a bit more fireside planning to do though before the weather improves 
Thanks for your interest,
Carly ( just to confuse everyone I've changed my login name as most people seem to have a name other than their own!))