Good idea for no digging in my rock solid ground. Do not cover the holes but use them for herbs and annuals. line with weed barrier cloth and used rebar in several places for stability. I love it and makes maintenence super easy.
Top 10 Unexpected DIY Concrete Block Furniture Projects
Holiday Gift Box Concrete Brick Tutorial: It's a really great way to add some fun holiday decor to the outside of your home. Turn simple concrete blocks into a fun holiday gift box. So cute! Christmas outside decorations.