How/what goes under decorative landscaping bricks so they don't sink?
by Linda Vernon
+2
What goes underneath decorative landscaping stones so they don't sink into the ground and stay level? That heavy large type that I want to put down around my tree.
Suggested Project Book
Hi Linda,
If you want to be sure they won't move, there are a lot of steps involved. Here's an article about secure installation of bricks along a garden edge. Wishing you the best.
https://www.thisoldhouse.com/how-to/how-to-edge-garden-bed-brick
My husband leveled the ground under ours, then put down pea sized gravel OR sand. It keeps them level and allows the water to drain away. I think he put down about an inch or a little more under the stones.
Sand or stone dust both work well. I use an old pruning blade to trace the stones and then excavate out any sod underneath. Depending on the thickness of the stones, you should excavate out enough to have 2-3 inches of sand or stone dust to set the stones into.
Crush. in the method described by Seth, or DesertRose.
Usually the ground underneath is tamped down then we used a landscaping fabric, then gravel or landscaping stones on top of that.