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.