SilverSword

I need to edge my lawn to create a separate space for flower beds. There are threads about plastic edging, but I wonder if I can just use standard 2" x 6" Cedar planks for this.

Any ideas on whether this makes sense or how to do it?

Housedoctor57

Cedar is a soft wood, weed eater string and lawn mowers will chew into this. Look into using composite decking 1X6's. You can find a good deal at salvage stores.

kok328

Your going to need a means of keeping it from pushing up out of the ground.
This is my biggest pet peave about plastic or any other type of edging.

Con65

Sure. Cedar planks make a good looking edging. The only problem you'll have is providing for curves. I've handled this by making cuts on-half way through the boards one quarter of an inch apart. This seems to allow the planks to bend in gentle curves that suit flower beds.