Add cap blocks to the top row of a block or stone retaining wall. You can add a layer of masonry adhesive to hold them in place, then back fill. Or you can backfill as you go, then add the cap. Either way, it provides a nice finished look, much like edging added to a paver patio.
The Rosetta® Belvedere collection is an ideal choice for garden retaining walls. Featuring multiple unit sizes along with an industry-leading 64 unique stone textures, the Belvedere collection provides an incredibly natural look.