Don't like the look of plastic garden edging? Fortunately, there's more than one way to hide it. One way is with groundcovers: i.e., grow a groundcover in your planting bed, and let it trail right over the plastic edging, thereby hiding it. But you can also hide it 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.
