How to Landscape With Glass Blocks

Mark out the margin of the walkway edging using stakes and string. This will help you determine if standard glass blocks will be appropriate for the area or whether you need to order glass blocks in a different size from a glass specialty supplier.

Flatten the ground along the marked edge of the walkway with the back of a shovel, tamping it down firmly and as evenly as possible.

Lay concrete pavers along the edge of the walkway in a line, securing them firmly in the soil and leaving a ¼-inch gap between the pavers to accept mortar.

Apply mortar to the spaces with a trowel, removing the excess as you go. Allow the mortar to dry overnight.

Apply a layer of silicone caulk on top of the pavers to accept the first layer of glass blocks.

Lay the first line of glass blocks using plastic spacers to separate the blocks evenly.

Apply silicone caulk on the top of the glass blocks. Position the glass block for the second row. Continue this process until you have the correct height for the edging.

Apply glass block grout in between blocks, removing excess grout from the surface with a damp cloth. Allow the grout to dry.