The previous owner put down what looks to be inch river rock in all of the landscape beds around the house.
River rock raised garden beds.
River rocks of all shapes and sizes add a hard element to balance the soft features of flower beds.
How to use river rock in plant beds.
Rock mulch is decorative gravel or rocks ranging in size from pea size to golf ball size often sourced from river beds.
Crushed rock or pea gravel work well at the bottom of a raised bed to improve drainage particularly in beds more than 18 inches tall or where the bed is in an area of the yard with poor drainage.
It s available in a wide variety of sizes colors textures and shapes from porous lightweight red or black lava rock to pretty smooth quartz gravel mulch in purple or pink.
The stone goes down at least 1 2 inches.