Can anyone advise me please. We have a very steep, almost vertical, high bank at the back of our house that, with all the rain, has partially slipped (my husband has today cleared away 18 barrow loads of sand and rock). The only thing growing there at present is bramble. Ferns in other places seem to have been very effective at holding back the bank and I'd like to extend these but haven't a clue how to start. I have ferns in other places that I could split but would this be the best way to propagate them?
Has anyone out there overcome a similar problem? Any suggestions about what plants might be effective and easy to establish without disturbing the bank too much? Any advise would be very much appreciated.