Avoiding toxic soil in raised garden beds
My husband, bless him, bought treated wood to build me four large raised garden beds so I can plant veggies and flowers. He's got them built when I think to ask if he used treated wood - and he did. So now I'm wondering what's a safe wood sealant that he can put on the wood so the chemicals don't leech into the soil? Can we use a spar varnish on the inside? Any suggestions or advice would be most welcome. Thank you!
Certified GKH Gardening Expert
These links will help you make decisions regarding the safety of the treated lumber.