I really like it, it turned out very nice, the stone wall with the small flower bed around it and so nicely lined. A professional wouldn't have planned it any better. :eek:
Now I'm confused again. When I want to build a garden wall out of mortar and bricks, I read/hear everywhere that I have to dig 80cm deep and pour concrete. Otherwise, it would be at risk of collapsing or falling over. And you have apparently dug out 20cm and just put stones in there and stacked them dry on top of each other - and it holds? o_O