I'm having both my front and rear cement walkways scratch coated and colored. What is the easiest way to edge the grass border. I tried a 2" air gap, but tree seeds and weeds grow in there. I'd like a clean border with no gap, but I can't find the tool to do it.
![[Hearth.com] Walkway Path Edging Tool [Hearth.com] Walkway Path Edging Tool](https://www.hearth.com/talk/data/attachments/159/159515-e8b4c305c3c5cc1ddfd65092e2deb889.jpg?hash=drNTKM23VQ)