Step 8. Carefully add about a 2 inch layer of mulch on the top layer to retain moisture within the bed. Enjoy your garden and don't forget to water ...
Constructing "green space" as well as an organic vegetable garden on asphalt for an Atlanta-based Community Outreach Non-profit organization.
Step 1: Building the Concrete Garden Box
Step 1. Select a spot that gets lots of daily sun. Build out a garden box using concrete blocks 4 X 12 X 14 (on sale here in GA for 25 cents apiece!). We used approximately 80 blocks for a raised bed garden measuring: 16 in. H x 3 ft L x 9 ft W.