Place concrete blocks with open ends facing up to outline the raised bed. The openings can be filled with soil and used as planting pockets for small herbs or edible flowers.
To build a bed 4 feet by 8 feet, you’ll need 16 blocks, 8 by 8 by 16 inches each.
Planks & Rebar
This bed can be constructed of leftover lumber of almost any dimension, so long as the wood is untreated. Hold the planks on edge with short lengths of rebar pounded into the ground every 2 or 3 feet.
To build a bed 4 feet by 8 feet, you’ll need two 2-by-12 planks 8 feet long, two 2-by-12 planks 4 feet long, and 12 pieces of rebar 24 inches long.
Using the long, slender bags of sand that are sold as traction sand, outline a bed. Stack the bags two high.
To build a bed 4 feet by 8 feet, you’ll need 20 sandbags.
See a step-by-step guide to building a raised bed from lumber.
Photos by Paterick Montero