Home depot/Lowes River Rocks: Are they safe? Thread I am referring to the larger 4"+ rocks that are in the garden/yard section of the Home Depot/Lowes hardware store. Thanks! i can atest to this. i got about 20 rocks/stones and it only cost 17 bucks at the local landscape stone dealer yard. you can also walk the yard and choose from Home depot/Lowes River Rocks: Are they safe Please note: You are currently browsing img outdoor lowes edging to make aggressive curves garden that is 1024x768px in size. This image is listed in decorative garden rocks lowes category. Home depotLowes River Rocks Are they safe, 1024x768 in 226.72 KB.