This planter bed is made from lightweight blocks, held together with a system that doesn’t require mortar. You can use it to build unreinforced walls up to 600mm high. Check council rules before you begin.
Gather your supplies
• 190 x 200 x 400mm Adbri Versastone blocks
• 190 x 200 x 390mm Adbri Versatone corner blocks
• 190 x 40 x 390mm Adbri Versatone capping blocks
• Blue metal or crushed rock
You’ll also need
Measuring tape; stringline; setout paint; rubber mallet; spirit level; caulking gun; Selleys Liquid Nails; shovel; improved soil; plants
Step 1 On a solid foundation of compacted road base, measure and spot-mark positions of raised beds.
Step 2 Position 2 corner blocks in 1 corner of marked area. Lay first course of blocks on either side of corner blocks, sliding blocks together and interlocking for stability. Repeat for remaining corners, gently tapping blocks into place and checking level.
Step 3 Repeat Step 2 to lay second course, building up corners first if access is an issue. Stagger joints for stability. Continue until blocks are 3 courses high (about 600mm).
Step 4 Backfill void within blocks with rubble and crushed rock for strength. You will need about 1m³ of crushed rock for every 10m² of block face.
Step 5 Place capping on top of blockwork. Use Selleys Liquid Nails to fix capping in place.
Step 6 Fill raised planter with improved soil. Water and allow to settle. Soil level will drop, so top it up again with additional soil prior to planting. Plant up