Posted: 26/10/2014 at 16:30
I would use edging plants to stop any stones falling out. Plants like aubrietia, Arabis, helianthemum, campanula, geraniums, etc.
i would use gravel but not membrane. I hate the stuff, it still allows surface weeds to anchor into it and makes future planting difficult.
For first year or two use weed killer to control any weeds.