I have a design for a container that is portable, completely above ground, supported by wooden legs. It's a good design. However, some parts of the container uses treated lumber. Question: Will the chemicals leach out of the wood and find their way into the plants?

Edibles or look-at-me stuff? I'd likely not use it for food plants, but it wouldn't be a problem insofar as phytotoxicity. Should be easy to find an answer if you're talking about edibles. treated lumber food plants would likely get the job done.

Al

I have the same issue. I was given a mountain of treated lumber scraps that I would love to make into planter boxes. The only thing I can come up with is to find inexpensive plastic or metal containers to serve as liners inside the wooden planters. On the plus side, being able to remove the filled containers makes for more lightweight planter boxes if I need to move them.

The new treated lumber isn't like the old treated lumber, and even with the old treated lumber the issue was sawdust from cutting it, not the lumber itself. I wouldn't worry about it.

@Pyewacket, I'm not sure I agree with you when it comes to plants grown for food given this report: https://www.bobvila.com/articl...
It states that, although the EPA banned the use of arsenic for treating lumber in 2004, the present-day chemicals still may not be suited for use around food sources. That's according to organic growers.