Don't like the look of plastic garden edging? Fortunately, there's more than one way to hide plastic garden edging. One way is with groundcovers: i.e., grow a groundcover in your planting bed, and let it trail right over the plastic garden edging, thereby hiding it. But you can also hide plastic garden edging by selecting the right color for mulch.
I chose the latter option, and you can see the results in the photo above. Note that this is a close-up photo; believe me, from a distance, you can barely see the plastic garden edging, thanks to the black mulch behind it. In fact, that's precisely why I had to use a close-up photo here: one can't make out the plastic garden edging at all in the other photos I snapped, standing farther away!
If you'd still rather not use any plastic garden edging, there is an alternative. I refer you back to the photo on Page 1, showing the same project with just a mowing strip. Simply lay down some landscape fabric on the planting-bed side of the mowing strip, before adding mulch. But on the part of the planting bed adjacent to the concrete pavers, limit yourself to just a thin layer of mulch, since you don't have much of a barrier with which to contain it. Don't worry: the landscape fabric will suppress the weeds.
