Ten years ago, we made over my mother-in-law's front garden by laying plastic cloth and covering it in 3 inches of stone chips - with some evergreen plants poking trough. The usual kind of thing for some one who no longer wishes to garden. Now, it looks fine but I've been removing some of the older and overgrown cypress. The stone chips now harbour plant debris, accumulated over the decade. How do I spruce this up - just rake over or lit the chips into a sieve and hose? Or what?
Geoff