build what I wanted), but he should have mentioned water run-off. when it rained hard, the mulch would wash out of the bed between the two patios. So I installed metal edging, added gravel. Two hard rains, and no mulch moved. The only water in the bed has to fall directly on it, so it is doing great. I like the metal edging, very easy to install, looks better than the vinyl rolls, I started with that, but ripped it out and returned it, as it looks so bad, plus it would not be strong enough to hold up the gravel/rocks. Plus a added photo of my front garden for others to get ideas, still need to work on the front garden to the right of the steps though, but it's getting there.