Russell D. wrote:
I just got off the phone with a very helpful young man at my local Home
Depot. I was gathering info from him on the prices of redwood, cedar and
composite planking that I want to make grow boxes from. When I mentioned
to him that I was going to make grow boxes he suggested that I use
treated lumber, quickly adding, as if he anticipated my protest, there
is no longer any arsenic used in the treating process and nothing is
used that would be harmful.

I would appreciate any thoughts on this. I'm still a bit hesitant about
using treated lumber for grow boxes for vegetables but it would sure
save a lot of money if I could.

What do you think?

Russell

Most of the new treated lumber is treated with alkaline copper quat (ACQ
types B and D) and copper azole (CBA-A, CA-B). Yes, there safer than the
old CCA treated wood, but still not something I want in my garden.

David