Raised Bed Border Solution?

Question

I have learned that you cannot use treated wood for raised beds. I am trying to build a 4×4 raised bed, that will last, and the only other solution is cedar, but that is an issue beacuse of tons of carpenter bees. Any seggustions?

Answer 1

Cinder blocks! They last longer than wood, and are just as safe on the environment around it as wood it.

https://www.gardeningknowhow.com/special/starting/cinder-block-garden-beds.htm