[Greenbuilding] best lumber for raised vegetable beds

[Kat]

I just watched this discussion happen with another group.  Try straw 
bales or CMU blocks instead?

-Kat

candtcampbell at juno.com wrote:
> What type of wood, treated or otherwise, would y'all expect to last longest in ground contact when used to make raised vegetable garden beds? Or would y'all say recycled plastic lumber is better for that application?
>
> Thanks very much.
>
> Tim
>
>